141
142
Published in 1988
Repository
143
144
145
146
by Barrera, Víctor Hugo; Cruz, Elena; Cárdenas de Mera, Flor María; Cobeña Ruiz, Gloria; Zambrano Lucero, Hector Miguel
Published in 2010
Repository
147
Published in 2010
Repository
148
149
150
by Navarrete Cedeño, José Bernardo; Cañarte Bermúdez, Ernesto; Chérrez, César; Velásquez, José; García, Jefferson; Reyes, Carlos
Published in 2016
Repository
151
152
153
Published in 1973
Repository
154
Published in 1989
Repository
155
Published in 2012
Repository
156
157
158
bachelorThesis
Published in 2017
Repository Repositorio Universidad Estatal de Bolivar
159
masterThesis
Published in 2015
Repository Repositorio Universidad Tecnológica Equinoccial
160
bachelorThesis
Published in 2015
Repository Repositorio Universidad Tecnológica Equinoccial