“Efforts To Improve Backhand Service And Long Forehand Service Results In Badminton Through Playing Methods In Students of SMP Negeri 3 Palembang”, Compet. J. Pendidik. Kepelatihan Olahraga, vol. 17, no. 2, pp. 1317–1323, Jun. 2025, doi: 10.26858/cjpko.v17i2.115.