263

book
by SA
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Repository Repositorio Biblioteca Digital CCE
264

267

masterThesis
Published in 2010
Repository Repositorio Universidad de Guayaquil
268

bachelorThesis
Published in 2023
Repository Repositorio Universidad Laica Eloy Alfaro de Manabí
272

book
Published in 2016
Repository Repositorio Universidad Politécnica Salesiana
275

276

masterThesis
Published in 2017
Repository Repositorio Escuela Superior Politécnica del Litoral
280

article
Published in 1998
Repository Repositorio Facultad Latinoamericana de Ciencias Sociales