Households Willingness to Pay for Improved Urban Solid Waste Management: The Case of Mekelle City, Ethiopia. Ethiopian Journal of Economics, [S. l.], v. 22, n. 1, p. 107–138, 2014. Disponível em: http://ethiopianjournalofeconomics.org/index.php/EJE/article/view/134.. Acesso em: 27 jul. 2026.