ชูชีพ ผ. “The Effectiveness of Exercise Program for Wheelchair Used Toward Physical Conditions and Self- Efficacy Expectation on Daily Living Activities of the Elderly in Pathumthani Province”. Mahamakut Graduate School Journal, vol. 16, no. 2, July 2019, pp. 105-1, https://so04.tci-thaijo.org/index.php/mgsj/article/view/199800.