SÁNCHEZ, J; ESPARZA, F; GAIBOR, I; BARBA, M. La evasión tributaria originada en el uso de comprobantes de venta/Evaluation of micro and small enterprises of the popular and solidarity economy prior to participating in a Business Round. KnE Engineering, [S. l.], v. 5, n. 2, p. 149–163, 2020. DOI: 10.18502/keg.v5i2.6231. Disponível em: https://knepublishing.com/index.php/KnE-Engineering/article/view/6231. Acesso em: 8 sep. 2025.