Market study regarding the demand for ethanol derived from potatoes as a raw material for the production of goods in pharmaceutical, disinfection, liquor and cosmetic activities in the city of Tulcán. Business Vision, [S. l.], n. 14, p. 51–66, 2024. DOI: 10.32645/13906852.1320. Disponível em: https://revistasdigitalesupeceduec35.biteca.online/index.php/visionempresarial/article/view/1320. Acesso em: 18 sep. 2026.