Argantos, Argantos. “TEACHING METHODS OF PRACTICE STYLE AND COMMAND STYLE IN IMPROVING THE SKILL OF BUTTERFLY STROKE”. JIPES - JOURNAL OF INDONESIAN PHYSICAL EDUCATION AND SPORT 1, no. 1 (June 30, 2015): 32-40. Accessed April 27, 2024. https://journal.unj.ac.id/unj/index.php/jipes/article/view/1109.