Masturi, D. Alighiri, S.S. Edie, U. Hanisyifa, and A. Drastisianti. “Determination of Total Phenol and Flavonoid Contents and Antioxidant Activity from Extract Fraction of Sappan Wood (Caesalpinia Sappan L.) by Liquid-Liquid Extraction and Vacuum Liquid Chromatography”. Asian Journal of Chemistry 33, no. 8 (July 26, 2021): 1729–1735. Accessed May 3, 2024. https://asianpubs.org/index.php/ajchem/article/view/33_8_5.