Songsaeng, Wipawee, and Wattasit Siriwong. “Work-related musculoskeletal disorders among coffee harvesters in Chiang Rai, Thailand: Prevalence, severity, and risk factors”. Journal of Health Research 32, no. Suppl.1 (December 21, 2018): S112-S120. accessed September 15, 2026. https://he01.tci-thaijo.org/index.php/jhealthres/article/view/164688.