Arjuna, Fatkurahman, Furqon Hidayatullah, Sugiyanto Sugiyanto, and Muchsin Douwes. 2023. “Level of Understanding of Fitness Instructors on Injury Prevention and Treatment in Yogyakarta Fitness Center”. Jurnal Cakrawala Pendidikan 42 (3):705-18. https://doi.org/10.21831/cp.v42i3.54995.