Antibacterial 1 Article 1 Bacillus cereus 1 Disc diffussion 1 Escherichia coli 1 Hoya diversifolia 1 Hoya diversifolia extract Minimum inhibitory concentration 1 Staphylococcus aureus 1 alcohol 1 alkaloid derivative 1 ampicillin 1 anthraquinone derivative 1 antibacterial activity 1 antibiotic agent 1 bacterial strain 1 controlled study 1 disk diffusion 1 gentamicin 1 in vitro study 1 lupeol 1 methicillin resistant Staphylococcus aureus 1 minimum inhibitory concentration 1 nonhuman 1 plant extract 1 plant leaf 1 saponin derivative 1 scanning electron microscopy 1 sitosterol 1 squalene 1