JOSEPH, M.; HEPELWA, H. Reconciling Willingness to Pay and Conservation Costs for Sustainable Watershed Management in Tanzania. UDSM Online Journal Testing, [S. l.], v. 9, n. 2, p. 33-52, 2019. DOI: 10.56279/ter.v9i2.45. Disponível em: https://testojs.udsm.ac.tz/index.php/ter/article/view/45. Acesso em: 9 jan. 2025.