Intharachai K, Thiabthong B. Effects of the Circuit Training Activity Set Development Promoting Physical Fitness for Physical Education Activity Course Students. JESCU [internet]. 2020 Sep. 30 [cited 2026 Sep. 15];48(3):41-59. available from: https://so02.tci-thaijo.org/index.php/EDUCU/article/view/244980