“Comparison of Antibacterial Efficacy Between 96% Ethanolic Extracts from Abrus Precatorius L. And Piper Betle L. Leaves Against Escherichia Coli”. 2020. Majalah Kedokteran Bandung 52 (2): 69-73. https://doi.org/10.15395/mkb.v51n2.1970.