Mose, Victor. “Productive Efficiency of Water Utilities in Kenya in the Millennium Development Goals Era: Implications on Operations and Service Delivery”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 44, no. 1 (February 25, 2019): 139–177. Accessed May 3, 2024. https://gssrr.org/index.php/JournalOfBasicAndApplied/article/view/9807.