Sabarman, J., E. Legowo, D. Widiputri, and A. Siregar. “Bioavtur Synthesis from Palm Fatty Acid Distillate through Hydrotreating and Hydrocracking Processes”. Indonesian Journal of Energy, Vol. 2, no. 2, Aug. 2019, pp. 99-110, doi:10.33116/ije.v2i2.40.