OKPECHI K. U. P.; NWAOKORONGWO E. C.; JOSEPH U. Physical properties of magnetic materials of Cobalt Oxide, Iron Oxide and Manganese Oxide. JOURNAL OF BASICS AND APPLIED SCIENCES RESEARCH, [S. l.], v. 2, n. 1, p. 129–134, 2024. DOI: 10.33003/jobasr-2024-v2i1-40. Disponível em: https://jobasrfudutsinma.com/index.php/ojs-files/article/view/302. Acesso em: 1 apr. 2026.