Investigation and Comparative Analysis of Natural Moulding Sands from Five Deposits in Maiduguri, Nigeria. FUDMA Journal of Engineering and Technology, [S. l.], v. 1, n. 2, p. 627–638, 2025. DOI: 10.33003/cazjdw35. Disponível em: https://fjet.fudutsinma.edu.ng/index.php/fjet/article/view/81. Acesso em: 14 mar. 2026.