JIJINGI, Hemen Emmanuel; EZEKIEL, Ambo Mamai; DURU, Obioma Kelechi. Comparative Study of River Benue and River Asa Sand in North Central Nigeria as Filter Media. American Scientific Research Journal for Engineering, Technology, and Sciences, Jordan, v. 22, n. 1, p. 243–280, 2016. Disponível em: https://asrjetsjournal.org/American_Scientific_Journal/article/view/1792. Acesso em: 11 sep. 2025.