1
Published in 1997
Repository
2
by Ochoa L., José; Gallegos, Patricio; Asaquibay, César; Insuasti, María Luisa; Galarza, V.; Jaramillo, A.; Vizuete, B.; Viera, William; Viteri, J.; Williams, Roger; Carrasco, I.; Martínez, Aníbal; Ayala, G.
Published in 2001
Repository
3
by Revelo, Jorge; Viteri D., Pablo; Vásquez C., Wilson; Valverde, Franklin; León F., Juan; Gallegos, Patricio
Published in 2010
Repository
4
5
6
by Gallegos, Patricio; Asaquibay, César; Cartagena Ayala, Yamil Everaldo; Freire, Mario; Chulde Lafuente, Nancy Dolores
Published in 2003
Repository
7
8
9
10
11
Published in 2010
Repository
12
13
14
Published in 1991
Repository
15
Published in 2012
Repository
16
by Paucar, Betty; Gallegos, Patricio; Nieto C., Carlos; Córdova, Juan J.; Rodríguez I., Luis F.; Ochoa L., José; Williams, Roger
Published in 2000
Repository
17
18
Published in 1997
Repository
19
20
Published in 2010
Repository