MERA, C. Challenges of e-commerce for Ecuadorian PYMES. Espí­ritu Emprendedor TES, [S. l.], v. 5, n. 4, p. 19–39, 2021. DOI: 10.33970/eetes.v5.n4.2021.285. Disponível em: https://www.espirituemprendedortes.com/index.php/revista/article/view/285. Acesso em: 5 dec. 2025.