Tassanawong, P., W. Chanthorn, and J. Rakprasit. “Prevalence and Factors Associated With Musculoskeletal Disorders Among Tea Farmers, Thoet Thai Subdistrict, Mae Fa Luang District, Chiang Rai Province”. Srinagarind Medical Journal, vol. 33, no. 5, Aug. 2018, pp. 457-64, https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/141488.