1
article
by Motesdeoca, Mercedes; Amano, Yasuji; Echeverría, Fabrizio; Betancourt, Irma; Panchana, Fanny; Sotomayor, Mariuxi; Rodríguez, Jenny
Published in 2002
Repository Repositorio Escuela Superior Politécnica del Litoral
2
article
by Valladares, Alejandra; Bayot, Bony; Echeverria Briones, Pedro Fabricio; Panchana, Fanny; Betancourt, Irma; Rodriguez, Jenny
Published in 2009
Repository Repositorio Escuela Superior Politécnica del Litoral