FEIJOO, M.; BOZA, J.; DÍAZ, E.; ANDRADE, M. Diagnóstico de la estructura económica de las PYMES de Quevedo-Ecuador: Diagnosys of the economic strcuture of the PYMES in Quevedo - Ecuador. ECA Sinergia, Portoviejo, Ecuador, v. 4, n. 1, p. 21–29, 2013. Disponível em: https://revistas.utm.edu.ec/index.php/ECASinergia/article/view/115. Acesso em: 3 feb. 2026.