VILLAFUERTE QUIMIZ, B. A.; ORTIZ HERNÁNDEZ, E. H.; PANCHANA DE CALDERERO, R. Analysis of the economic impact on social housing in Portoviejo of a concrete design, focused on the characteristics of coarse and fine aggregates supplied by local quarries. Journal of business and entrepreneurial studie, [S. l.], 2022. DOI: 10.37956/jbes.v6i3.307. Disponível em: https://www.journalbusinesses.com/index.php/revista/article/view/307. Acesso em: 2 may. 2026.