Reva Apriana Sanga Dwi, Dicky. “The Effectiveness Of Bridge With Leg Reach Exercise About Flexibility Stomach and Hip”. Journal of Physical Education and Sport Science 1, no. 2 (August 31, 2019): 7-13. Accessed February 3, 2023. http://jurnal.upmk.ac.id/index.php/jpess/article/view/1112.