Romy, Romy, Suwitno Suwitno, Yogie Rinaldi Ginting, and Ferdinandus Extranta Sembiring. “Optimization of Injection Pressure and Fuel Temperature in a Diesel Engine Using Biodiesel B40”. Jurnal Riset Teknologi Pencegahan Pencemaran Industri 15, no. 1 (May 29, 2024): 1–9. Accessed September 8, 2024. https://jrtppi.id/index.php/jrtppi/article/view/188.