Valencia, Francisco Javier Espinoza, Juan Carlos Robles Ibarra, and Victor Manuel Delgado Moreno. “Study to Determine Qualitative Characteristics in Customer Service Positions in Supermarkets (Super North Case)”. Journal of Applied Business and Economics 21, no. 7 (December 20, 2019). Accessed December 22, 2024. https://articlegateway.com/index.php/JABE/article/view/2553.