ASSESSMENT OF POLLUTION-INDUCED DISSOLVED OXYGEN VARIATION IN RIVER CHALLAWA. Nigerian Journal of Technology, [S. l.], v. 34, n. 3, p. 616–623, 2015. DOI: 10.4314/njt.343.984. Disponível em: https://nijotech.com/index.php/nijotech/article/view/984. Acesso em: 16 apr. 2026.