1
by Vélez Navarrete, Arístides Rodrigo; Valverde, Franklin; Montesdeoca, Fabián; Alvarado Ochoa, Soraya Patricia; Kromann, Peter
Published in 2012
Repository
2
3
by Potosí Argoti, Byron Fernando; Montesdeoca, Fabián; Andrade-Piedra, Jorge; Paucar, Betty; Alvarado Ochoa, Soraya Patricia
Published in 2010
Repository