Monik Krisnawati. “Physical Test And Antibacterial Activities Of The Ethanol Cream Extract Of Airleaf (Ziziphus Spina-Christi L.) On Propionibacterium Acnes ATCC 6919”. Journal of Health (JoH) 8, no. 2 (July 30, 2021): 55-66. Accessed April 26, 2024. https://journal.gunabangsa.ac.id/index.php/joh/article/view/233.