Rattanakan P, Tingsabhat S. Effects of Learning Management Based on the King’s Rama 9’s Principles of Work, and Affective Domain Theory on Attitude towards Physical Education of Lower Secondary . OJED [Internet]. 2020 Dec. 29 [cited 2024 May 5];15(2):OJED1502041 (16 pages). Available from: https://so01.tci-thaijo.org/index.php/OJED/article/view/245396