Machine-Learning Modeling of Sulfuric-Acid Leaching of Metalliferous Oil-Shale Ash: Predictive Performance, Feature Importance, and Confounding in an Unbalanced Experimental Design. Eurasian Journal of Engineering and Technology, [S. l.], v. 54, p. 42–48, 2026. Disponível em: https://geniusjournals.org/index.php/ejet/article/view/7670. Acesso em: 27 sep. 2026.