P.U. , Igwe; A.C. , Onwudufor. Poor Handling of Municipal Solid Wastes: Pollution of Groundwater by Heavy Metals in Omagba, Onitsha, Anambra State, Nigeria . African Journal of Education,Science and Technology (AJEST), [S. l.], v. 3, n. 3, p. Pg 59–66, 2017. Disponível em: http://ajest.org/index.php/ajest/article/view/201. Acesso em: 3 apr. 2026.