Buranruk, Orawan, Wichai Eungpinichpong, Thaweesak Chunyachareun, Nanthana Chompuyan, Philaiporn Kodwong, and Preeyakamon Sawana. “Effect of Chi-Kung exercise on alteration of hip and trunk flexibility in adults aged 20-30 years”. Archives of Allied Health Sciences 14, no. 3 (September 18, 2002): 230–237. accessed September 11, 2026. https://he01.tci-thaijo.org/index.php/ams/article/view/65979.