มะโนธรรม อ. “THE STUDY OF ERGONOMICS TO REDUCE RISK OF WORK-RELATED MUSCULOSKELETAL DISORDERS AMONG MAIZE FARMERS IN LAMPANG PROVINCE”. Journal of Industrial Education, vol. 17, no. 1, Apr. 2018, pp. 95-103, https://ph01.tci-thaijo.org/index.php/JIE/article/view/139962.