Mariono, Mariono, Wahyudi Wahyudi, and Muhammad Nadjib. “Effect of Density and Viscosity on Injection Characteristic of Jatropha - Waste Cooking Oil Biodiesel Mixture”. JMPM (Jurnal Material dan Proses Manufaktur) 7, no. 1 (July 1, 2023): 44–52. Accessed May 4, 2025. https://journal.umy.ac.id/index.php/jmpm/article/view/17896.