Lalu Muh. Alwan Ardiansyah, Nopi Hariadi, Zaenul Arkanuddin, Rina Nopiana, M. Julian, M. Salehudin, and M. Zamroni. 2026. “Changes in Vertical Jump Performance Following a Four-Week Agility-Ladder Program in Amateur Football Players”. Musamus Journal of Physical Education and Sport (MJPES) 8 (4), 1313-16. https://doi.org/10.35724/mjpes.v8i4.7965.