DIENY, F. F.; BERLIAN BUNTARLAN, A.; RATNA NOER, E.; NISSA, C. 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, v. 7, n. 2, p. 180-193, 8 Aug. 2021.