Porramatikul, M., T. Meeopartmongkon, B. Lorpipatana, C. Chaiwatcharaporn, and T. Yimlamai. “The Effect of Damper on Tennis Racket Handle Impact Force After Ball Impaction”. Vajira Medical Journal : Journal of Urban Medicine, vol. 64, no. 3, June 2020, pp. 181-92, doi:10.14456/vmj.2020.18.