1
article
Published in 2007
Repository Repositorio Universidad Andina Simón Bolivar
2
article
Published in 2007
Repository Repositorio Facultad Latinoamericana de Ciencias Sociales
3
article
by Valencia Llano, Alonso; Quishpe, Marcelo; Terán Najas, Rosemarie; Jáuregui Cordero, Juan Eriberto
Published in 1999
Repository Repositorio Universidad Andina Simón Bolivar