Chayawatcharakul, Soontaree, and Narat Pichaiyongvongdee. “A Pilot Study on Chest Expansion in Children Aged Between 6 to 12 Years”. HCU Journal 24, no. 2 (December 30, 2020): 146–154. Accessed May 10, 2024. https://he01.tci-thaijo.org/index.php/HCUJOURNAL/article/view/219543.