Assessment of persistent organic pollutants in water samples from River Challawa in Kano, Nigeria. World Journal of Environmental Research, [S. l.], v. 5, n. 2, p. 159–177, 2015. DOI: 10.18844/wjer.v5i2.163. Disponível em: https://un-pub.eu/ojs/index.php/wjer/article/view/163. Acesso em: 23 jul. 2024.