“Effect of Hydration Education With Whatsapp Group Media in Increasing in Fluid Knowledge, Fluid Intake and Hydration Status of Football Athletes”. Jurnal SPORTIF : Jurnal Penelitian Pembelajaran 7, no. 2 (August 8, 2021): 180–193. Accessed March 10, 2025. https://ojs.unpkediri.ac.id/index.php/pjk/article/view/15875.