The Effect of Wrist Flexibility and Arm Muscle Strength On The Accuracy of Backhand Backspin Service At The Pingpong Community Club of Bulukumba Regency. Compet. J. Pendidik. Kepelatihan Olahraga. 2025;17(1):278-292. doi:10.26858/cjpko.v17i1.71202