Wongpoowarak, Payom, Chananphim Phengchuai, Phimrada Rattanachamit, Monsigan Kaewmanee, Siripan Konsuparp, Wibul Wongpoowarak, and Prapaporn Boonme. “Evaluation of Drug Information Service via https://drug.pharmacy.psu.ac.th”. Science, Engineering and Health Studies 4, no. 1 (March 20, 2013): 8–14. accessed October 10, 2026. https://li01.tci-thaijo.org/index.php/sehs/article/view/7348.