พวงหอม ส., หงษ์ชุมแพ อ., and แซ่เนี้ยว ศ. “The development of drug-related problems and dosage adjustment record forms for patients taking warfarin”. Hua Hin Medical Journal, vol. 1, no. 1, Feb. 2019, pp. 74-84, https://he01.tci-thaijo.org/index.php/hhsk/article/view/175020.