The variable income marjet and sanitation branch companiel: the impact os investments associated with the New Sanitation Marl. Research, Society and Development, [S. l.], v. 9, n. 12, p. e38091211199, 2020. DOI: 10.33448/rsd-v9i12.11199. Disponível em: https://rsdjournal.org/rsd/article/view/11199. Acesso em: 5 dec. 2025.