ชูชีพ ผุสดี. 2019. “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 16 (2):105-15. https://so04.tci-thaijo.org/index.php/mgsj/article/view/199800.