Sitorus, P., and D. Satria. “ANTIBACTERIAL ACTIVITY OF ETHANOL EXTRACT AND VOLATILE OIL OF LAJA GOWAH RHIZOME (ALPINIA MALACCENSIS BURM.F.) ROSCOE) AGAINST STAPHYLOCOCCUS AUREUS AND ESCHERICHIA COLI”. Asian Journal of Pharmaceutical and Clinical Research, vol. 9, no. 2, Mar. 2016, pp. 342-4, https://journals.innovareacademics.in/index.php/ajpcr/article/view/10824.