Tandiyo, D. K., R. D. Haryadi, A. Probandari, and D. G. Tamtomo. “Radial Extracorporeal Shockwave Therapy on Calcaneal Spurs: A Randomized Controlled Trial”. Medical Journal of Indonesia, vol. 28, no. 4, Dec. 2019, pp. 316-21, doi:10.13181/mji.v28i4.3039.