Khanaphan, . K. ., Suggaravetsiri, P. ., & Chaiklieng, S. . (2019). Ergonomics risk and muscle fitness among rubber planters in Ubon Ratchatani Province. UBRU Journal for Public Health Research, 8(2), 21–31. Retrieved from https://he02.tci-thaijo.org/index.php/ubruphjou/article/view/240309