Makungu, Ruth, and Shem Sikombe. “Investigating the Influence of Queuing Theory Parameters on Customer Satisfaction at ZANACO: The Mediating Role of Customer Waiting Time”. African Journal of Commercial Studies 7, no. 2 (April 7, 2026): 201–215. Accessed June 19, 2026. https://ijcsacademia.com/index.php/journal/article/view/479.