W. R. Huertas Molina, M. Y. Martín Bohórquez, M. T. Herrera Alvarado, and A. M. Gamba Vallejo, “Characterization of the commerce sector in the municipalities of Almeida, Guateque and Garagoa”, WP, no. 1, pp. 139–150, Apr. 2022, doi: 10.22490/ECACEN.5790.