Tanthanapanyakorn, P., Sanguanchue, A., Khuntikulanon, N., Chanmalee, S., Cetthakrikul, S., & Wongpituk, K. (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