Mulyono, P., A. S. Yuzki, M. D. Sari, and N. R. E. Putri. “Extraction of Flavonoids from Merremia Mammosa Using Ethanol Solvent in a Fixed-Bed Column”. ASEAN Journal of Chemical Engineering, Vol. 22, no. 1, June 2022, pp. 105-12, https://jurnal.ugm.ac.id/v3/AJChE/article/view/9231.