“Rapid Microwave-Assisted Transesterification of Palm Oil Using Sulfonated Graphene Catalyst Prepared Via SLS-Stabilized Turbulence-Assisted Shear Exfoliation”. Journal of Research and Technology 12, no. 1 (July 28, 2026): 125–138. Accessed October 18, 2026. https://journal.unusida.ac.id/index.php/jrt/article/view/1932.