581
doctoralThesis
Published in 2021
Repository Repositorio Universidad de Guayaquil
582
doctoralThesis
Published in 2016
Repository Repositorio Universidad de Guayaquil
583
doctoralThesis
Published in 2022
Repository Repositorio Universidad de Guayaquil
584
doctoralThesis
Published in 2011
Repository Repositorio Pontificia Universidad Católica del Ecuador
585
doctoralThesis
Published in 1989
Repository Repositorio Universidad Técnica Particular de Loja
586
doctoralThesis
Published in 1999
Repository Repositorio Universidad Técnica Particular de Loja