“Analysis of Basic Volleyball Smash Technique Skills In Extracurricular Courses At State Senior High School 1 Kertek Wonosobo”, Compet. J. Pendidik. Kepelatihan Olahraga, vol. 17, no. 2, pp. 1486–1495, Jun. 2025, doi: 10.26858/cjpko.v17i2.134.