Panuwat Suppakul, Nutcha Sanla-Ead, and Panchuti Phoopuritham. “Antimicrobial and Antioxidant Activities of Betel Oil”. Agriculture and Natural Resources 40, no. 6 (Suppl.) (December 30, 2006): 91–100. Accessed May 5, 2024. https://li01.tci-thaijo.org/index.php/anres/article/view/244019.