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2
by Amores Puyutaxi, Freddy Marcelo; Agama Parreño, Juan Emilio; Mite Vivar, Francisco Arturo; Jiménez Barragán, Juan Carlos; Loor Solórzano, Rey Gastón; Quiroz Vera, James Gonzalo
Published in 2009
Repository
3
by Calderón Peña, Esteban Darío; Loor Solórzano, Rey Gastón; Amores Puyutaxi, Freddy Marcelo; Motamayor, J. C.; Peña Monserrate, Geover Rolando
Published in 2006
Repository