Ratanavalachai, Treetip, and Vichai Wongchai. “Antibacterial Activity of Intact Roval Jelly, Its Lipid Extract and Its Defatted Extract”. Science & Technology Asia 7, no. 1 (November 4, 2015): 5–12. Accessed May 6, 2024. https://ph02.tci-thaijo.org/index.php/SciTechAsia/article/view/41842.