1
2
by Yumisaca, Fausto; Aucancela, Rodrigo; Panchi, Nancy; Peñaherrera, Diego; Rivadeneira Ruales, Jorge Esteban; Cuesta Subía, Hugo Xavier
Published in 2016
Repository
3
by Yánez Navarrete, Zoila Elizabeth; Espinosa A., Patricio; Sevillano, Carlos; Yumisaca, Fausto; Guerrero, David; Cuesta Subía, Hugo Xavier
Published in 2008
Repository
4
Published in 2016
Repository
5
6
7