Febrina, D.; Febriyanti, R.; Zam, S. I.; Handoko, J.; Fatah, A.; Juliantoni, J. Antibacterial Activity Testing and Ethanol Extract Characterization of Oil Palm Fronds (Elaeis Guineensis Jacq). Pak. J. Nutr. 2018, 17 (9), 427–433. https://doi.org/10.3923/pjn.2018.427.433.