Songsaeng, Wipawee, and Wattasit Siriwong. 2018. “Work-Related Musculoskeletal Disorders Among Coffee Harvesters in Chiang Rai, Thailand: Prevalence, Severity, and Risk Factors”. Journal of Health Research 32 (Suppl.1):S112-S120. https://he01.tci-thaijo.org/index.php/jhealthres/article/view/164688.