Kirer, George, Dr. Penina Langat, Dr. Peter Cheruiyot, and Dr. Williter Rop , trans. “Revenue Collectors Competency on Achievement of Own Source Revenue in Kenyan County Governments”. International Journal of Scientific Research and Management (IJSRM) 12, no. 05 (May 23, 2024): 6440–6448. Accessed June 15, 2025. https://www.ijsrm.net/index.php/ijsrm/article/view/5201.