Nhinh Nguyen Van, and Vi Nguyen Tuong. “ASSESSMENT OF THE QUALITY OF LUBRICATION OIL FOR USE ON LPG/DIESEL FUEL ENGINE”. UTEHY Journal of Applied Science and Technology 37 (March 31, 2023): 20-24. Accessed December 22, 2024. http://jst.utehy.edu.vn/index.php/jst/article/view/582.