Nodir Sharifovich Yakhyaev, and Abror Akbarovich Aliev. “Production Of Heavy Oil Products From Oil Sludge At Atmospheric Pressure”. The American Journal of Engineering and Technology 3, no. 09 (September 30, 2021): 31–36. Accessed December 22, 2024. https://theamericanjournals.com/index.php/tajet/article/view/1873.