Maifa, Sitti. “Pengaruh Latihan Ladder Speed Run Terhadap Kecepatan (Speed)”. Jurnal Porkes 4, no. 2 (January 25, 2022): 182–188. Accessed May 2, 2024. https://e-journal.hamzanwadi.ac.id/index.php/porkes/article/view/5009.