21
article
by Perez Chavarria, Cecilia; Tingo Chiliguano, Armando; Simbaña Jerez, Alejandra; Romero Montoya, Maria Elena
Published in 2009
Repository Repositorio Escuela Superior Politécnica del Litoral
22
article
Published in 2009
Repository Repositorio Escuela Superior Politécnica del Litoral
23
bachelorThesis
Published in 2009
Repository Repositorio Escuela Superior Politécnica del Litoral