CHEMICAL AND MINERALOGICAL PROPERTIES OF LEJJA NSUKKA IRON ORE DEPOSITS. Nigerian Journal of Technology, [S. l.], v. 42, n. 3, p. 347–352, 2023. DOI: 10.4314/njt.v42i3.7. Disponível em: https://nijotech.com/index.php/nijotech/article/view/3171. Acesso em: 16 apr. 2026.