FACHREZZY F. THE STUDY CORRELATION BETWEEN ARM MUSCLE EXPLOSIVE POWER, CORE STABILITY STRENGTH AND ACHIEVEMENT MOTIVATION WITH THE SPEED OF 60 METERS RUN. IJER [Internet]. 2020Jan.29 [cited 2025Aug.6];6(2). Available from: http://103.8.12.212:33180/unj/index.php/ijer/article/view/14028