Phonmakham, J., Wattanasuksakul, S., and Poeaim, S. “Antibacterial and anti-tyrosinase activities of the methanolic extracts from leaves of Tectona grandis”. International Journal of Agricultural Technology, vol. 14, no. 7, Dec. 2018, pp. 1611-8, https://li04.tci-thaijo.org/index.php/IJAT/article/view/8706.