Phuphanee, Kessarin, and Chonlatee Photong. 2022. “Development of Working Time Data Collection and Checking for Staff of Faculty of Engineering, Mahasarakham University”. Research and Development Journal, Loei Rajabhat University 17 (60):17-27. https://so05.tci-thaijo.org/index.php/researchjournal-lru/article/view/247407.