AHMED ELSAMMANI , A. H. .; GESMALLAH ISMAIL, H. . Determination of the Optical Properties of Cobalt Oxide Using Ultraviolet Visible Spectroscopy . BIMA JOURNAL OF SCIENCE AND TECHNOLOGY GOMBE, [S. l.], v. 8, n. 3A, p. 156-162, 2024. Disponível em: https://journal-academia.com/Ojs/index.php/bimajst/article/view/762. Acesso em: 3 oct. 2025.