1
by Guerrero Castillo, Hilton Ecuador; Duicela Guambi, Luis; Amores Puyutaxi, Fredy Marcelo; Corral, Rubén; Zambrano Mendoza, José Luis
Published in 2004
Repository
2
Published in 2010
Repository
3
by Vasco Medina, Segundo Alfonso; Quiroz Vera, James Gonzalo; Zambrano Mendoza, José Luis; Peña Monserrate, Geover Rolando; Cedeño Aguirre, José Luis; De Boef, W.; Peroni, N.; Verhoosel, K.; Duicela Guambi, Luis
Published in 2007
Repository
4
Published in 1984
Repository
5
6
7