Bibliografi : lembar 70-71
The purpose of this study is to be able to know (1) the relationship with the long jump results of the force according to (2) the relationship of stomach muscle strength to the long jump results of resistant force and (3) the relationship of speed and strength with the long jump style on Athletic Athletics Faculty State University of Jakarta.This research began on December 20, 2017 at the Youth…
Bibliografi : hlm. 50-51