Al Jawani, Luthfi Ma’ruf, et al. “Relationship Between Speed and Leg Muscle Strength With the Long Jump Squat Style Results in Class VIII Students at SMP Negeri 1 Penuguan”. Journal of Social Work and Science Education, vol. 4, no. 3, June 2023, pp. 628-31, doi:10.52690/jswse.v4i3.599.