โอภาสบุตร อ., กอมณี ส., & หกสุวรรณ พ. (2019). The Development of Training Package on Counterfeit Gold Checking for Gold Shop Staffs. Journal of Educational Review Faculty of Education in MCU, 6(2), 167–177. Retrieved from https://so02.tci-thaijo.org/index.php/EDMCU/article/view/192708