Marendra, M. R., Personi, M., & Sumantri, A. (2025). The Effect Of Waist Flexibility Training On Smashing Ability In Extracurricular Volleyball At State High School 10 In Bengkulu City. Journal of Physical Education and Sports, 2(2), 43–48. https://doi.org/10.37676/jpes.v2i2.1065