GETACHEW, Derese; FUFA, Negassa. 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), Jordan, v. 42, n. 3, p. 1–15, 2018. Disponível em: https://www.gssrr.org/JournalOfBasicAndApplied/article/view/9342. Acesso em: 19 sep. 2025.