Supattananon, Naratip, Praphan Yawara, Apiwat Youngwilai, and Raknoi Arkararungruangkul. 2022. “Productivity Improvement through a Work Study With Ergonomic Risk Assessment: A Case Study of a High-Voltage Line Distribution Operation”. Engineering and Applied Science Research 49 (5):688-95. https://ph01.tci-thaijo.org/index.php/easr/article/view/247872.