Rattanasuk, Surachai, Nopphasul Sirijant, Rujirek Boongapim, Duanpen Wongson, and Nittaya Pitiwitayakul. 2022. “In vitro antibacterial activity of Polyalthia debilis (Pierre) Finet & Gagnep Extracts against Klebsiella pneumoniae TISTR 1383”. SciTech Research Journal 5 (2). Maha Sarakham, Thailand:1-9. https://ph02.tci-thaijo.org/index.php/jstrmu/article/view/247357.