Endrawan, I. B., Muslimin, S. . Atesya Kesumawati, and D. Sartika. “Efforts to Improve Long Jump Learning Achievement Through 50-Meter Sprint Training”. Indonesian Journal of Physical Education and Sport Science, vol. 4, no. 1, Dec. 2023, pp. 48-60, doi:10.52188/ijpess.v4i1.530.