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: http://103.8.12.212:33180/unj/index.php/gjik/article/view/23673 (Accessed: 14January2026).