Simanjuntak, Victor, and Hendri Maksum. “Improving the Results of Triple Jump Exercise Using Image and Video Media”. Jurnal SPORTIF : Jurnal Penelitian Pembelajaran 7, no. 2 (September 2, 2021): 317–332. Accessed December 27, 2024. https://ojs.unpkediri.ac.id/index.php/pjk/article/view/16384.