Markom, Masturah, Norsyamimi Hassim, Nurina Anuar, and Syarul Nataqain Baharum. 2012. “Co-Solvent Selection for Supercritical Fluid Extraction of Essential Oil and Bioactive Compounds from Polygonum Minus”. ASEAN Journal of Chemical Engineering 12 (2), 19-26. https://jurnal.ugm.ac.id/v3/AJChE/article/view/8128.