Pitillos biodegradables. Visión Empresarial, [S. l.], n. 10, p. 141–149, 2020. DOI: 10.32645/13906852.1017. Disponível em: https://revistasdigitales.upec.edu.ec/index.php/visionempresarial/article/view/1017. Acesso em: 21 oct. 2026.