Phuttarakkit, Phonphol, Jintana Sarayutthpitak, Sarinya Rodpipat, and Chatchana Phroedphring. 2023. “PHYSICAL ACTIVITY PROMOTION PROGRAM DURING COVID - 19 PANDEMIC USING ECOLOGICAL FOR UNDERGRADUATE STUDENTS”. Academic Journal of Thailand National Sports University 15 (3). Chonburi, Thailand:197-210. https://he02.tci-thaijo.org/index.php/TNSUJournal/article/view/257656.