Getachew, Derese, and Negassa Fufa. “Household Willingness to Pay for Improved Solid Waste Management Service: The Case of Ambo Town, Ethiopia”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 42, no. 3 (November 5, 2018): 1–15. Accessed June 21, 2026. https://gssrr.org/JournalOfBasicAndApplied/article/view/9342.