H. Silaban, “The Effect of Various Concentrations of Ethanol Extract of the Leaves of Paederia foetida L. on the Growth of Escherichia Coli Bacteria”, J. Drug Delivery Ther., vol. 11, no. 6, pp. 61–67, Nov. 2021, doi: 10.22270/jddt.v11i6.5037.