Portillo Villatoro, Tania Marleny, Deborah Rebeca Salgado Cubías, and Katherine Michell Villalta Iglesias. “COVID-19: Reinventing Business Models for Micro, Small, and Medium-Sized Enterprises and Startups in Antiguo Cuscatlán and Santa Tecla in the Restaurant and Retail Sectors”. Realidad Empresarial, no. 11 (June 1, 2021): 23–38. Accessed November 12, 2026. https://revistas.uca.edu.sv/reuca/article/view/6176.