Tampubolon , M. I., and R. E. B. Hutabarat. “Antibacterial Activity Test of Sawo Leaf (Manilkara Zapota L) N-Hexane Extract on the Growth of Staphylococcus Aureus and Escherichia Coli Bacteria”. Journal of Pharmaceutical and Sciences, vol. 6, no. 4, Aug. 2023, pp. 1443-55, doi:10.36490/journal-jps.com.v6i4.225.