Incertidumbre y limitaciones para el acceso al crédito empresarial oportuno en tiempos de pandemia: Uncertainty and limitations for access to timely business credit in times of pandemic. REVISTA DE INVESTIGACIÓN SIGMA, [S. l.], v. 9, n. 01, p. 63–72, 2021. DOI: 10.24133/sigma.v9i01.2626. Disponível em: https://journal.espe.edu.ec/ojs/index.php/Sigma/article/view/2626. Acesso em: 20 apr. 2025.