KUMAR, Utlanta; ROY, Arup. Formal–Informal Integration in Urban Solid Waste Management for a Sustainable Circular Economy: A Systematic Literature Review . International Journal of Management and Development Studies, [S. l.], v. 15, n. 9, p. 01–20, 2026. DOI: 10.31305/ijmds.v15n09.001. Disponível em: https://www.ijmds.in/index.php/IJMDS/article/view/136. Acesso em: 25 sep. 2026.