Putranto, Singgih Yoga, Agus Kristiyanto, and Sapta Kunta Purnama. “The Prediction Of Athletic Coping Skills Inventory, Leg Muscle Strength, Agility, Torso Flexibility, Eye-Foot Coordination, Leg Muscle Power With Idan Dollyo Chagi Tae Kwon Do Kyorugi Learning Result (Correlational Study on Player Tae Kwon Do 15-20 Year Age Group Class Under 54 Kilogram at Banyumas District)”. Journal of Education, Health and Sport 9, no. 4 (April 1, 2019): 84–95. Accessed July 27, 2024. https://apcz.umk.pl/JEHS/article/view/6764.