URL List

http://repositorio.up.edu.pe/handle/11354/201
http://repositorio.up.edu.pe/handle/11354/164
http://repositorio.up.edu.pe/handle/11354/273
http://repositorio.up.edu.pe/handle/11354/688
http://repositorio.up.edu.pe/handle/11354/704
http://repositorio.up.edu.pe/handle/11354/548
http://repositorio.up.edu.pe/handle/11354/264
http://repositorio.up.edu.pe/handle/11354/534
http://repositorio.up.edu.pe/handle/11354/674
http://repositorio.up.edu.pe/handle/11354/203
http://repositorio.up.edu.pe/handle/11354/1506
http://repositorio.up.edu.pe/handle/11354/337
http://repositorio.up.edu.pe/handle/11354/1491
http://repositorio.up.edu.pe/handle/11354/917
http://repositorio.up.edu.pe/handle/11354/1453
http://repositorio.up.edu.pe/handle/11354/875
http://repositorio.up.edu.pe/handle/11354/1062
http://repositorio.up.edu.pe/handle/11354/335
http://repositorio.up.edu.pe/handle/11354/326
http://repositorio.up.edu.pe/handle/11354/792
http://repositorio.up.edu.pe/handle/11354/1072
http://repositorio.up.edu.pe/handle/11354/773
http://repositorio.up.edu.pe/handle/11354/1074
http://repositorio.up.edu.pe/handle/11354/897
http://repositorio.up.edu.pe/handle/11354/863
http://repositorio.up.edu.pe/handle/11354/1068
http://repositorio.up.edu.pe/handle/11354/756
http://repositorio.up.edu.pe/handle/11354/862
http://repositorio.up.edu.pe/handle/11354/1001
http://repositorio.up.edu.pe/handle/11354/462
http://repositorio.up.edu.pe/handle/11354/176
http://repositorio.up.edu.pe/handle/11354/168
http://repositorio.up.edu.pe/handle/11354/460
http://repositorio.up.edu.pe/handle/11354/1523
http://repositorio.up.edu.pe/handle/11354/969
http://repositorio.up.edu.pe/handle/11354/323
http://repositorio.up.edu.pe/handle/11354/830
http://repositorio.up.edu.pe/handle/11354/953
http://repositorio.up.edu.pe/handle/11354/1513
http://repositorio.up.edu.pe/handle/11354/909
http://repositorio.up.edu.pe/handle/11354/762
http://repositorio.up.edu.pe/handle/11354/816
http://repositorio.up.edu.pe/handle/11354/1076
http://repositorio.up.edu.pe/handle/11354/562
http://repositorio.up.edu.pe/handle/11354/516
http://repositorio.up.edu.pe/handle/11354/261
http://repositorio.up.edu.pe/handle/11354/553
http://repositorio.up.edu.pe/handle/11354/683
http://repositorio.up.edu.pe/handle/11354/220
http://repositorio.up.edu.pe/handle/11354/396
http://repositorio.up.edu.pe/handle/11354/962
http://repositorio.up.edu.pe/handle/11354/968
http://repositorio.up.edu.pe/handle/11354/966
http://repositorio.up.edu.pe/handle/11354/344
http://repositorio.up.edu.pe/handle/11354/1129
http://repositorio.up.edu.pe/handle/11354/751
http://repositorio.up.edu.pe/handle/11354/729
http://repositorio.up.edu.pe/handle/11354/1118
http://repositorio.up.edu.pe/handle/11354/1117
http://repositorio.up.edu.pe/handle/11354/723
http://repositorio.up.edu.pe/handle/11354/1025
http://repositorio.up.edu.pe/handle/11354/719
http://repositorio.up.edu.pe/handle/11354/907
http://repositorio.up.edu.pe/handle/11354/662
http://repositorio.up.edu.pe/handle/11354/716
http://repositorio.up.edu.pe/handle/11354/686
http://repositorio.up.edu.pe/handle/11354/398
http://repositorio.up.edu.pe/handle/11354/542
http://repositorio.up.edu.pe/handle/11354/454
http://repositorio.up.edu.pe/handle/11354/642
http://repositorio.up.edu.pe/handle/11354/96
http://repositorio.up.edu.pe/handle/11354/663
http://repositorio.up.edu.pe/handle/11354/700
http://repositorio.up.edu.pe/handle/11354/980
http://repositorio.up.edu.pe/handle/11354/351
http://repositorio.up.edu.pe/handle/11354/1202
http://repositorio.up.edu.pe/handle/11354/343
http://repositorio.up.edu.pe/handle/11354/881
http://repositorio.up.edu.pe/handle/11354/795
http://repositorio.up.edu.pe/handle/11354/1126
http://repositorio.up.edu.pe/handle/11354/1121
http://repositorio.up.edu.pe/handle/11354/781
http://repositorio.up.edu.pe/handle/11354/469
http://repositorio.up.edu.pe/handle/11354/672
http://repositorio.up.edu.pe/handle/11354/558
http://repositorio.up.edu.pe/handle/11354/457
http://repositorio.up.edu.pe/handle/11354/2003
http://repositorio.up.edu.pe/handle/11354/209
http://repositorio.up.edu.pe/handle/11354/687
http://repositorio.up.edu.pe/handle/11354/1864
http://repositorio.up.edu.pe/handle/11354/645
http://repositorio.up.edu.pe/handle/11354/1198
http://repositorio.up.edu.pe/handle/11354/1147
http://repositorio.up.edu.pe/handle/11354/1128
http://repositorio.up.edu.pe/handle/11354/876
http://repositorio.up.edu.pe/handle/11354/929
http://repositorio.up.edu.pe/handle/11354/901
http://repositorio.up.edu.pe/handle/11354/797
http://repositorio.up.edu.pe/handle/11354/772
http://repositorio.up.edu.pe/handle/11354/733
http://repositorio.up.edu.pe/handle/11354/763
http://repositorio.up.edu.pe/handle/11354/760
http://repositorio.up.edu.pe/handle/11354/586
http://repositorio.up.edu.pe/handle/11354/491
http://repositorio.up.edu.pe/handle/11354/433
http://repositorio.up.edu.pe/handle/11354/1130
http://repositorio.up.edu.pe/handle/11354/188
http://repositorio.up.edu.pe/handle/11354/867
http://repositorio.up.edu.pe/handle/11354/1113
http://repositorio.up.edu.pe/handle/11354/823
http://repositorio.up.edu.pe/handle/11354/948
http://repositorio.up.edu.pe/handle/11354/860
http://repositorio.up.edu.pe/handle/11354/946
http://repositorio.up.edu.pe/handle/11354/494
http://repositorio.up.edu.pe/handle/11354/629
http://repositorio.up.edu.pe/handle/11354/1541
http://repositorio.up.edu.pe/handle/11354/1040
http://repositorio.up.edu.pe/handle/11354/175
http://repositorio.up.edu.pe/handle/11354/868
http://repositorio.up.edu.pe/handle/11354/791
http://repositorio.up.edu.pe/handle/11354/835
http://repositorio.up.edu.pe/handle/11354/759
http://repositorio.up.edu.pe/handle/11354/914
http://repositorio.up.edu.pe/handle/11354/906
http://repositorio.up.edu.pe/handle/11354/523
http://repositorio.up.edu.pe/handle/11354/644
http://repositorio.up.edu.pe/handle/11354/543
http://repositorio.up.edu.pe/handle/11354/1123
http://repositorio.up.edu.pe/handle/11354/595
http://repositorio.up.edu.pe/handle/11354/916
http://repositorio.up.edu.pe/handle/11354/985
http://repositorio.up.edu.pe/handle/11354/869
http://repositorio.up.edu.pe/handle/11354/853
http://repositorio.up.edu.pe/handle/11354/983
http://repositorio.up.edu.pe/handle/11354/864
http://repositorio.up.edu.pe/handle/11354/521
http://repositorio.up.edu.pe/handle/11354/530
http://repositorio.up.edu.pe/handle/11354/493
http://repositorio.up.edu.pe/handle/11354/552
http://repositorio.up.edu.pe/handle/11354/577
http://repositorio.up.edu.pe/handle/11354/269
http://repositorio.up.edu.pe/handle/11354/810
http://repositorio.up.edu.pe/handle/11354/855
http://repositorio.up.edu.pe/handle/11354/177
http://repositorio.up.edu.pe/handle/11354/155
http://repositorio.up.edu.pe/handle/11354/793
http://repositorio.up.edu.pe/handle/11354/1044
http://repositorio.up.edu.pe/handle/11354/934
http://repositorio.up.edu.pe/handle/11354/754
http://repositorio.up.edu.pe/handle/11354/932
http://repositorio.up.edu.pe/handle/11354/620
http://repositorio.up.edu.pe/handle/11354/1036
http://repositorio.up.edu.pe/handle/11354/766
http://repositorio.up.edu.pe/handle/11354/944
http://repositorio.up.edu.pe/handle/11354/770
http://repositorio.up.edu.pe/handle/11354/1032
http://repositorio.up.edu.pe/handle/11354/1005
http://repositorio.up.edu.pe/handle/11354/669
http://repositorio.up.edu.pe/handle/11354/561
http://repositorio.up.edu.pe/handle/11354/566
http://repositorio.up.edu.pe/handle/11354/680
http://repositorio.up.edu.pe/handle/11354/1063
http://repositorio.up.edu.pe/handle/11354/1059
http://repositorio.up.edu.pe/handle/11354/851
http://repositorio.up.edu.pe/handle/11354/900
http://repositorio.up.edu.pe/handle/11354/1057
http://repositorio.up.edu.pe/handle/11354/886
http://repositorio.up.edu.pe/handle/11354/571
http://repositorio.up.edu.pe/handle/11354/2004
http://repositorio.up.edu.pe/handle/11354/2006
http://repositorio.up.edu.pe/handle/11354/1535
http://repositorio.up.edu.pe/handle/11354/1520
http://repositorio.up.edu.pe/handle/11354/510
http://repositorio.up.edu.pe/handle/11354/845
http://repositorio.up.edu.pe/handle/11354/882
http://repositorio.up.edu.pe/handle/11354/811
http://repositorio.up.edu.pe/handle/11354/1514
http://repositorio.up.edu.pe/handle/11354/526
http://repositorio.up.edu.pe/handle/11354/505
http://repositorio.up.edu.pe/handle/11354/490
http://repositorio.up.edu.pe/handle/11354/865
http://repositorio.up.edu.pe/handle/11354/839
http://repositorio.up.edu.pe/handle/11354/838
http://repositorio.up.edu.pe/handle/11354/777
http://repositorio.up.edu.pe/handle/11354/803
http://repositorio.up.edu.pe/handle/11354/783
http://repositorio.up.edu.pe/handle/11354/594
http://repositorio.up.edu.pe/handle/11354/837
http://repositorio.up.edu.pe/handle/11354/739
http://repositorio.up.edu.pe/handle/11354/1867
http://repositorio.up.edu.pe/handle/11354/2091
http://repositorio.up.edu.pe/handle/11354/603
http://repositorio.up.edu.pe/handle/11354/506
http://repositorio.up.edu.pe/handle/11354/573
http://repositorio.up.edu.pe/handle/11354/581
http://repositorio.up.edu.pe/handle/11354/826
http://repositorio.up.edu.pe/handle/11354/812
http://repositorio.up.edu.pe/handle/11354/2007
http://repositorio.up.edu.pe/handle/11354/582
http://repositorio.up.edu.pe/handle/11354/512
http://repositorio.up.edu.pe/handle/11354/784
http://repositorio.up.edu.pe/handle/11354/885
http://repositorio.up.edu.pe/handle/11354/857
http://repositorio.up.edu.pe/handle/11354/847
http://repositorio.up.edu.pe/handle/11354/722
http://repositorio.up.edu.pe/handle/11354/1868
http://repositorio.up.edu.pe/handle/11354/545
http://repositorio.up.edu.pe/handle/11354/691
http://repositorio.up.edu.pe/handle/11354/643
http://repositorio.up.edu.pe/handle/11354/732
http://repositorio.up.edu.pe/handle/11354/731
http://repositorio.up.edu.pe/handle/11354/718
http://repositorio.up.edu.pe/handle/11354/656
http://repositorio.up.edu.pe/handle/11354/696
http://repositorio.up.edu.pe/handle/11354/646
http://repositorio.up.edu.pe/handle/11354/694
http://repositorio.up.edu.pe/handle/11354/2092
http://repositorio.up.edu.pe/handle/11354/648
http://repositorio.up.edu.pe/handle/11354/2008
http://repositorio.up.edu.pe/handle/11354/637
http://repositorio.up.edu.pe/handle/11354/608
http://repositorio.up.edu.pe/handle/11354/633
http://repositorio.up.edu.pe/handle/11354/551
http://repositorio.up.edu.pe/handle/11354/668
http://repositorio.up.edu.pe/handle/11354/888
http://repositorio.up.edu.pe/handle/11354/852
http://repositorio.up.edu.pe/handle/11354/805
http://repositorio.up.edu.pe/handle/11354/808
http://repositorio.up.edu.pe/handle/11354/748
http://repositorio.up.edu.pe/handle/11354/655
http://repositorio.up.edu.pe/handle/11354/806
http://repositorio.up.edu.pe/handle/11354/563
http://repositorio.up.edu.pe/handle/11354/484
http://repositorio.up.edu.pe/handle/11354/677
http://repositorio.up.edu.pe/handle/11354/638
http://repositorio.up.edu.pe/handle/11354/650
http://repositorio.up.edu.pe/handle/11354/923
http://repositorio.up.edu.pe/handle/11354/727
http://repositorio.up.edu.pe/handle/11354/601
http://repositorio.up.edu.pe/handle/11354/720
http://repositorio.up.edu.pe/handle/11354/717
http://repositorio.up.edu.pe/handle/11354/513
http://repositorio.up.edu.pe/handle/11354/664
http://repositorio.up.edu.pe/handle/11354/565
http://repositorio.up.edu.pe/handle/11354/925
http://repositorio.up.edu.pe/handle/11354/798
http://repositorio.up.edu.pe/handle/11354/2094
http://repositorio.up.edu.pe/handle/11354/764
http://repositorio.up.edu.pe/handle/11354/496
http://repositorio.up.edu.pe/handle/11354/657
http://repositorio.up.edu.pe/handle/11354/735
http://repositorio.up.edu.pe/handle/11354/891
http://repositorio.up.edu.pe/handle/11354/927
http://repositorio.up.edu.pe/handle/11354/480
http://repositorio.up.edu.pe/handle/11354/641
http://repositorio.up.edu.pe/handle/11354/689
http://repositorio.up.edu.pe/handle/11354/690
http://repositorio.up.edu.pe/handle/11354/715
http://repositorio.up.edu.pe/handle/11354/1439
http://repositorio.up.edu.pe/handle/11354/834
http://repositorio.up.edu.pe/handle/11354/1436
http://repositorio.up.edu.pe/handle/11354/833
http://repositorio.up.edu.pe/handle/11354/675
http://repositorio.up.edu.pe/handle/11354/524
http://repositorio.up.edu.pe/handle/11354/949
http://repositorio.up.edu.pe/handle/11354/774
http://repositorio.up.edu.pe/handle/11354/893
http://repositorio.up.edu.pe/handle/11354/747
http://repositorio.up.edu.pe/handle/11354/575
http://repositorio.up.edu.pe/handle/11354/609
http://repositorio.up.edu.pe/handle/11354/840
http://repositorio.up.edu.pe/handle/11354/819
http://repositorio.up.edu.pe/handle/11354/611
http://repositorio.up.edu.pe/handle/11354/604
http://repositorio.up.edu.pe/handle/11354/2095
http://repositorio.up.edu.pe/handle/11354/854
http://repositorio.up.edu.pe/handle/11354/871
http://repositorio.up.edu.pe/handle/11354/533
http://repositorio.up.edu.pe/handle/11354/615
http://repositorio.up.edu.pe/handle/11354/912
http://repositorio.up.edu.pe/handle/11354/872
http://repositorio.up.edu.pe/handle/11354/801
http://repositorio.up.edu.pe/handle/11354/936
http://repositorio.up.edu.pe/handle/11354/745
http://repositorio.up.edu.pe/handle/11354/721
http://repositorio.up.edu.pe/handle/11354/878
http://repositorio.up.edu.pe/handle/11354/539
http://repositorio.up.edu.pe/handle/11354/478
http://repositorio.up.edu.pe/handle/11354/612
http://repositorio.up.edu.pe/handle/11354/786
http://repositorio.up.edu.pe/handle/11354/713
http://repositorio.up.edu.pe/handle/11354/541
http://repositorio.up.edu.pe/handle/11354/622
http://repositorio.up.edu.pe/handle/11354/832
http://repositorio.up.edu.pe/handle/11354/856
http://repositorio.up.edu.pe/handle/11354/894
http://repositorio.up.edu.pe/handle/11354/817
http://repositorio.up.edu.pe/handle/11354/518
http://repositorio.up.edu.pe/handle/11354/600
http://repositorio.up.edu.pe/handle/11354/843
http://repositorio.up.edu.pe/handle/11354/859
http://repositorio.up.edu.pe/handle/11354/809
http://repositorio.up.edu.pe/handle/11354/522
http://repositorio.up.edu.pe/handle/11354/2097
http://repositorio.up.edu.pe/handle/11354/828
http://repositorio.up.edu.pe/handle/11354/778
http://repositorio.up.edu.pe/handle/11354/528
http://repositorio.up.edu.pe/handle/11354/3016
http://repositorio.up.edu.pe/handle/11354/2950
http://repositorio.up.edu.pe/handle/11354/2885
http://repositorio.up.edu.pe/handle/11354/2969
http://repositorio.up.edu.pe/handle/11354/3384
http://repositorio.up.edu.pe/handle/11354/3374
http://repositorio.up.edu.pe/handle/11354/3757
http://repositorio.up.edu.pe/handle/11354/3390
http://repositorio.up.edu.pe/handle/11354/2973
http://repositorio.up.edu.pe/handle/11354/2970
http://repositorio.up.edu.pe/handle/11354/2979
http://repositorio.up.edu.pe/handle/11354/2792
http://repositorio.up.edu.pe/handle/11354/3132
http://repositorio.up.edu.pe/handle/11354/3492
http://repositorio.up.edu.pe/handle/11354/3493
http://repositorio.up.edu.pe/handle/11354/3142
http://repositorio.up.edu.pe/handle/11354/3368
http://repositorio.up.edu.pe/handle/11354/2489
http://repositorio.up.edu.pe/handle/11354/2490
http://repositorio.up.edu.pe/handle/11354/2491
http://repositorio.up.edu.pe/handle/11354/2492
http://repositorio.up.edu.pe/handle/11354/2493
http://repositorio.up.edu.pe/handle/11354/2494
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http://repositorio.up.edu.pe/handle/11354/2496
http://repositorio.up.edu.pe/handle/11354/2528
http://repositorio.up.edu.pe/handle/11354/2793
http://repositorio.up.edu.pe/handle/11354/2804
http://repositorio.up.edu.pe/handle/11354/2805
http://repositorio.up.edu.pe/handle/11354/2806
http://repositorio.up.edu.pe/handle/11354/2992
http://repositorio.up.edu.pe/handle/11354/2497
http://repositorio.up.edu.pe/handle/11354/2795
http://repositorio.up.edu.pe/handle/11354/2808
http://repositorio.up.edu.pe/handle/11354/2830
http://repositorio.up.edu.pe/handle/11354/2835
http://repositorio.up.edu.pe/handle/11354/2521
http://repositorio.up.edu.pe/handle/11354/2522
http://repositorio.up.edu.pe/handle/11354/2546
http://repositorio.up.edu.pe/handle/11354/2548
http://repositorio.up.edu.pe/handle/11354/2847
http://repositorio.up.edu.pe/handle/11354/2516
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http://repositorio.up.edu.pe/handle/11354/2794
http://repositorio.up.edu.pe/handle/11354/2536
http://repositorio.up.edu.pe/handle/11354/2831
http://repositorio.up.edu.pe/handle/11354/2836
http://repositorio.up.edu.pe/handle/11354/2843
http://repositorio.up.edu.pe/handle/11354/2852
http://repositorio.up.edu.pe/handle/11354/2498
http://repositorio.up.edu.pe/handle/11354/2799
http://repositorio.up.edu.pe/handle/11354/2807
http://repositorio.up.edu.pe/handle/11354/2848
http://repositorio.up.edu.pe/handle/11354/2499
http://repositorio.up.edu.pe/handle/11354/2501
http://repositorio.up.edu.pe/handle/11354/2502
http://repositorio.up.edu.pe/handle/11354/2509
http://repositorio.up.edu.pe/handle/11354/2550
http://repositorio.up.edu.pe/handle/11354/2551
http://repositorio.up.edu.pe/handle/11354/2500
http://repositorio.up.edu.pe/handle/11354/2505
http://repositorio.up.edu.pe/handle/11354/2510
http://repositorio.up.edu.pe/handle/11354/2511
http://repositorio.up.edu.pe/handle/11354/2839
http://repositorio.up.edu.pe/handle/11354/2503
http://repositorio.up.edu.pe/handle/11354/2504
http://repositorio.up.edu.pe/handle/11354/2796
http://repositorio.up.edu.pe/handle/11354/2526
http://repositorio.up.edu.pe/handle/11354/2543
http://repositorio.up.edu.pe/handle/11354/2544
http://repositorio.up.edu.pe/handle/11354/2837
http://repositorio.up.edu.pe/handle/11354/2517
http://repositorio.up.edu.pe/handle/11354/2532
http://repositorio.up.edu.pe/handle/11354/2832
http://repositorio.up.edu.pe/handle/11354/2833
http://repositorio.up.edu.pe/handle/11354/2842
http://repositorio.up.edu.pe/handle/11354/2850
http://repositorio.up.edu.pe/handle/11354/2797
http://repositorio.up.edu.pe/handle/11354/2802
http://repositorio.up.edu.pe/handle/11354/2838
http://repositorio.up.edu.pe/handle/11354/2514
http://repositorio.up.edu.pe/handle/11354/2515
http://repositorio.up.edu.pe/handle/11354/2527
http://repositorio.up.edu.pe/handle/11354/2537
http://repositorio.up.edu.pe/handle/11354/2542
http://repositorio.up.edu.pe/handle/11354/2798
http://repositorio.up.edu.pe/handle/11354/2506
http://repositorio.up.edu.pe/handle/11354/2508
http://repositorio.up.edu.pe/handle/11354/2534
http://repositorio.up.edu.pe/handle/11354/2809
http://repositorio.up.edu.pe/handle/11354/2507
http://repositorio.up.edu.pe/handle/11354/2512
http://repositorio.up.edu.pe/handle/11354/2513
http://repositorio.up.edu.pe/handle/11354/2539
http://repositorio.up.edu.pe/handle/11354/2547
http://repositorio.up.edu.pe/handle/11354/2549
http://repositorio.up.edu.pe/handle/11354/2810
http://repositorio.up.edu.pe/handle/11354/2840
http://repositorio.up.edu.pe/handle/11354/2851
http://repositorio.up.edu.pe/handle/11354/2524
http://repositorio.up.edu.pe/handle/11354/2841
http://repositorio.up.edu.pe/handle/11354/2845
http://repositorio.up.edu.pe/handle/11354/2535
http://repositorio.up.edu.pe/handle/11354/2846
http://repositorio.up.edu.pe/handle/11354/2520
http://repositorio.up.edu.pe/handle/11354/2523
http://repositorio.up.edu.pe/handle/11354/2525
http://repositorio.up.edu.pe/handle/11354/2519
http://repositorio.up.edu.pe/handle/11354/2800
http://repositorio.up.edu.pe/handle/11354/2529
http://repositorio.up.edu.pe/handle/11354/2530
http://repositorio.up.edu.pe/handle/11354/2531
http://repositorio.up.edu.pe/handle/11354/2533
http://repositorio.up.edu.pe/handle/11354/2538
http://repositorio.up.edu.pe/handle/11354/2540
http://repositorio.up.edu.pe/handle/11354/2541
http://repositorio.up.edu.pe/handle/11354/2545
http://repositorio.up.edu.pe/handle/11354/2811
http://repositorio.up.edu.pe/handle/11354/2552
http://repositorio.up.edu.pe/handle/11354/2553
http://repositorio.up.edu.pe/handle/11354/2554
http://repositorio.up.edu.pe/handle/11354/2555
http://repositorio.up.edu.pe/handle/11354/2556
http://repositorio.up.edu.pe/handle/11354/2557
http://repositorio.up.edu.pe/handle/11354/2558
http://repositorio.up.edu.pe/handle/11354/2559
http://repositorio.up.edu.pe/handle/11354/2560
http://repositorio.up.edu.pe/handle/11354/2561
http://repositorio.up.edu.pe/handle/11354/2562
http://repositorio.up.edu.pe/handle/11354/2563
http://repositorio.up.edu.pe/handle/11354/2564
http://repositorio.up.edu.pe/handle/11354/2565
http://repositorio.up.edu.pe/handle/11354/2566