OGBEBOR, OGBEMUDIA J; OKIEIMEN, FELIX E; OKWU, UZOMA N. CHARACTERIZATION OF UGBEGUN CLAY DEPOSIT FOR ITS POTENTIAL. International Journal of Chemistry Research, [S. l.], v. 1, n. 2, p. 22–23, 2010. Disponível em: https://ijcr.info/index.php/journal/article/view/17. Acesso em: 7 sep. 2026.