Margiyan, M. E. ., Nuraini, S. and Hernawan (2022) “The effect of referee knowledge, leadership style and confidence on the performance of hockey referee”, Gladi : Jurnal Ilmu Keolahragaan, 13(02), pp. 161–177. Available at: https://journal.unj.ac.id/unj/index.php/gjik/article/view/23673 (Accessed: 5 November 2024).