Nurmajid I, Kusmiyati K, Saefulah DI, Yulianto AG, Haris IN. Supporting Factors For Participation In Volleyball Extracurricular Training At Vocational Schools In The Gumelar Sub-District For The 2022/2023 Academic Year. Indonesian J. Physical Activity [Internet]. 2024Oct.31 [cited 2024Nov.7];4(2). Available from: https://ijophya.org/index.php/ijophya/article/view/82