21
by Grijalva O., Jorge; Limongi, Ricardo; Arévalo Vizcaino, Venus; Vera, Roy; Quiroz, J.; Yumbo, A.; Jara, Fausto; Sigcha Morales, Franklin Anthony; Riofrío, José; Cerda, A.
Published in 2012
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23
Published in 1993
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25
by Grijalva O., Jorge; Ramos Veintimilla, Raúl; Arévalo Vizcaino, Venus; Barrera A., Paulo; Guerra M., Jaime
Published in 2013
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26
Published in 2013
Repository
27
28
29
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31
32
33
34
35
36
by Cárdenas, A.; Grijalva O., Jorge; Morillo, Eduardo; Ramos Veintimilla, Raúl; Meneses Montesdeoca, Luis Santiago
Published in 2013
Repository
37
by Clavijo, Francisco; Barrera, Víctor Hugo; Rodríguez I., Luis F.; Mosquera Andrade, Jorge; Yánez Ortiz, Iván; Godoy, Arturo; Grijalva O., Jorge
Published in 2016
Repository