Ridwan Pambudi, Akbar. 2019. “EFFECTIVENESS OF DRYLAND TRAINING MODELS ON FREE STYLE SWIMMING FOR STRENGTH OF MUSCLE MUSCLE USING MODIFICATION OF ROWING TOOLS ”FOR CHILDREN AGED 13-15 YEARS”. IJER - INDONESIAN JOURNAL OF EDUCATIONAL REVIEW 6 (1):64-83. https://journal.unj.ac.id/unj/index.php/ijer/article/view/14653.