“The Effectiveness of Caffeine Consumption on Cardiorespiratory Endurance Capacity, Motor Function, and Skill Performance of Athletes: A Secondary Data Analysis Study (Meta-Analysis)”. 2026. JISIP (Jurnal Ilmu Sosial Dan Pendidikan) 10 (3): 1696-1701. https://doi.org/10.58258/s9qy1z62.