Antibacterial activity of combined extracts of red ginger (Zingiber officinale var. Rubrum) and betel leaf (Piper betle L.) against Staphylococcus aureus and Escherichia coli. Melysa [Internet]. 2020 May 14 [cited 2025 Apr. 3];2(1):1-8. Available from: https://melysajournal.com/index.php/Melysa/article/view/45