Bayu, Wahyu Indra, Nurhasan Nurhasan, Suroto Suroto, and Soleh Solahuddin. “Peer Observation, Self-Assessment, and Circuit Learning: Improving Critical Thinking and Physical Fitness in Physical Education”. Jurnal Cakrawala Pendidikan 41, no. 2 (May 29, 2022): 308–320. Accessed June 7, 2025. https://jurnal.uny.ac.id/index.php/cp/article/view/38654.