Didin Dinasti Hafipudin, Herman Syah and Rindawan (2023) “The Effect Of Progressive Relaxation And Concentration Training On Penalty Kick Success In Dangar Putra Fc Football Club”, Musamus Journal of Physical Education and Sport (MJPES), 5(02), pp. 403-408. doi: 10.35724/mjpes.v5i01.7631.