Khairi, N. et al. 2023. Activity, Formulation and Effectiveness of Black Rice Extract (Oryza sativa L) Gel against Staphylococcus aures and Escherichia coli Bacteria. Jurnal Penelitian Pendidikan IPA. 9, 6 (Jun. 2023), 4273–4278. DOI:https://doi.org/10.29303/jppipa.v9i6.3914.