Physico-Chemical and Biological Characteristics of Faecal Sludge in Pit Latrines with Depth. Indian Journal of Environment Engineering (IJEE), [S. l.], v. 1, n. 1, p. 22–24, 2024. DOI: 10.54105/. Disponível em: https://www.journals.latticescipub.com/index.php/ijee/article/view/331.. Acesso em: 3 may. 2025.