Tapanya, Weerasak, Noppharath Sangkarit, and Saisunee Konsanit. 2017. “The Immediate Effects of Neck and Shoulder Muscle Massage Device Developingfrom Tennis Balls”. Srinagarind Medical Journal 32 (2):150-56. https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/85006.