Dorji, Thinley, Saran Tenzin Tamang, Sonam Yoezer, and Kuenzang Wangdi. “The Weight of Schoolbags and Musculoskeletal Pain in Children of Selected Schools in Thimphu, Bhutan: A Cross-Sectional Study”. International Journal of Medical Students 7, no. 2 (August 31, 2019): 29–32. Accessed November 30, 2021. https://ijms.info/IJMS/article/view/355.