21
22
23
24
25
26
27
by Delgado Cerón, Amanda Janeth; Suquillo, Jovanny; Sevillano, Carlos; Rodríguez I., Luis F.; Alvarado Ochoa, Soraya Patricia
Published in 2013
Repository
28
Published in 2016
Repository
29
30
Published in 2017
Repository
31
32
33
34
35
36
37
38
Published in 1993
Repository
39
by Suquillo, Jovanny; Sevillano, Carlos; Camacho, José; Nieto Beltrán, María; Yumisaca, Fausto; Aucancela, Rodrigo; Peñaherrera, Diego
Published in 2017
Repository
40
Published in 2010
Repository