NYABARO , Obed M.; MOSOTI , Douglas; MUTHOKA , Titus M.; ONYANCHA , Evans. Determination of Pollution Levels of Waste Water from Nakuru Tanners, Kenya . African Journal of Education,Science and Technology (AJEST), [S. l.], v. 1, n. 3, p. pp 200–210, 2013. Disponível em: http://ajest.org/index.php/ajest/article/view/360. Acesso em: 3 apr. 2026.