1.
Al-Ayed O. Catalytic Cracking of Vacuum Gas Oil and Used Lubricating Oil on Oil Shale Ash. Glob. J. Energ. Technol. Res. Updat. [Internet]. 2015 Apr. 1 [cited 2025 Jul. 4];2(1):25-32. Available from: https://avantipublisher.com/index.php/gjetru/article/view/193