Puengsuwan, Punnee, Torkamol Kamolrat, Wantana Siritaratiwat, Preeda Arayauuchanan, and Orawan Saetan. “A comparative study of heat effect between hot pack and Thai herbal ball on pain and physiological changes”. Archives of Allied Health Sciences 21, no. 1 (December 25, 2009): 74–82. accessed September 11, 2026. https://he01.tci-thaijo.org/index.php/ams/article/view/66181.