Anwari, A. S. N., A. . Widodo, S. Sulistyarto, and A. . Firmansyah. “Exploring the Correlation Between Hamstring Strength and Vertical Jump Performance Among Firefighters”. Jurnal Sains Keolahragaan Dan Kesehatan, vol. 11, no. 1, June 2026, pp. 145-54, doi:10.5614/jskk.2026.11.1.1.