[1]
T. Nurrahman, A. Aluwis, and M. Prawibowo, “Analysis of Underhand Serve Ability in Volleyball Game Among Extra-Curricular Students at Bahrul Ulum Islamic Boarding School, Pasir Utama, Rokan Hulu Regency”, Jurnal Ilmu Keolahragaan, vol. 1, no. 2, pp. 19–27, Mar. 2026, doi: 10.65943/jikor.2026.v1.i2.69.