SEAL, D; BOWN, RT; PARKER, AH. Penetrometer tests on 109 pit latrines in Kibera, Nairobi, Kenya. Water SA, [S. l.], v. 44, n. 3 July, 2018. DOI: 10.4314/wsa.v44i3.13. Disponível em: https://watersa.net/article/view/6637. Acesso em: 27 apr. 2024.