Nui, Pham Xuan, and Pham Son Tung. 2015. “Application of Oxidative and Soda Leach Method for Selective Recovery of Molybdenum from Spent Hydrodesulfurisation Catalysts”. Petrovietnam Journal 2 (February), 36-42. https://www.pvj.vn/index.php/TCDK/article/view/427.