OPPORTUNITIES FOR BY-PROCESS EXTRACTION OF MOLYBDENUM FROM BLACK SHALE ORES. European Journal of Emerging Technology and Discoveries, [S. l.], v. 3, n. 2, p. 7–12, 2025. Disponível em: https://europeanscience.org/index.php/1/article/view/1247. Acesso em: 12 sep. 2025.