“The Effect of Underhand Passing Practice Against a Wall on the Accuracy of Fortuna Rokan Hulu’s Underhand Passes”, Compet. J. Pendidik. Kepelatihan Olahraga, vol. 17, no. 3, pp. 2583–2590, Oct. 2025, doi: 10.26858/cjpko.v17i3.396.