Prasutiyon H, Prayogi U, Felayati FM, Sugianto E, Santosa BP. Using Ketapang Seed Oil Biodiesel as an Environmentally Friendly Renewable Alternative Energy to Improve Diesel Motor Performance. IJMEIR [Internet]. 2025 Jul. 10 [cited 2026 Jan. 28];9(3):598-603. Available from: https://journal.its.ac.id/index.php/ijmeir/article/view/4927