Nyaga, Jacinta Wahu. “FACTORS AFFECTING THE PERFORMANCE OF COURIER SERVICE INDUSTRY: A SURVEY OF COURIER COMPANIES IN KENYA”. International Journal of Supply Chain and Logistics 1, no. 1 (February 9, 2017): 44–60. Accessed May 5, 2024. https://carijournals.org/journals/index.php/IJSCL/article/view/86.