Helianthi, D. R., C. Simadibrata, A. Srilestari, E. R. Wahyudi, and R. Hidayat. “Pain Reduction After Laser Acupuncture Treatment in Geriatric Patients With Knee Osteoarthritis: A Randomized Controlled Trial”. Acta Medica Indonesiana, vol. 48, no. 2, Sept. 2016, pp. 114-21, https://actamedindones.org/index.php/ijim/article/view/149.