SUGIYANTO; EKO HARIYANTO; ARIEF DARMAWAN; AHADI PRIYOHUTOMO; CAHYO NUGROHO SIGIT. Improving the Coaching Knowledge of Physical and Sports Teachers to Improve Students Sports Achievements in Malang City. GANDRUNG: Jurnal Pengabdian Kepada Masyarakat, v. 6, n. 1, p. 2199-2205, 20 Feb. 2025.