Vadhanavira, D., P. Chumjai, and P. Wangtrakul. “Predicting Factors on Exercise Behaviors among Older Adults at the Third Age University in Chiang Rai”. Thai Red Cross Nursing Journal, vol. 18, no. 3, Dec. 2025, pp. 47-63, doi:10.64767/trcn.2025.275007.