Yongsi H.B., Nguendo, Ntetu Lutumba A., Bryant R. Christopher, Ojuku Tiafack, and Hermann Thora M. “Uncontrolled Draining of Rainwater and Health Consequences in Yaoundé – Cameroon”. Acta Universitaria 19, no. 2 (August 1, 2009): 20–30. Accessed June 28, 2026. https://www.actauniversitaria.ugto.mx/index.php/acta/article/view/95.