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. RIS [Internet]. 2021 Dec. 29 [cited 2024 May 6];9(01):63-72. Available from: https://journal.espe.edu.ec/ojs/index.php/Sigma/article/view/2626