Tanthanapanyakorn, P., A. Sanguanchue, N. Khuntikulanon, S. Chanmalee, S. Cetthakrikul, and K. Wongpituk. 2021. “Effectiveness of the Self-Care Sandbag Exercise Program for the Osteoarthritis of Knee Patients in the Secondary Care in Thailand: Randomized Control Trial”. International Journal of Geoinformatics 17 (5):195-204. https://doi.org/10.52939/ijg.v17i5.2051.