จงเสถียรธรรม อ. . “The Acute Effects of Gastrocnemius Stretching on Ankle Dorsiflexion and Balance in Individuals With Gastrocnemius Muscle Tightness”. Journal of Health Science of Thailand, vol. 34, no. 5, Oct. 2025, pp. 884-93, https://thaidj.org/index.php/JHS/article/view/14782.