Hormhuan, Chanisa, and Panutporn Ruangchoengchum*. “An Elimination of Cost from Error and Delay Activities in Tracing Financial Document Process: A Case Study of the Academic Clinical Research Office, Khon Kaen Province”. Journal of Management Science, Ubon Ratchathani University 10, no. 2 (November 19, 2021): 78–93. accessed December 8, 2025. https://so03.tci-thaijo.org/index.php/jms_ubu/article/view/245427.