“The Effect of Wrist Flexibility and Arm Muscle Strength On The Accuracy of Backhand Backspin Service At The Pingpong Community Club of Bulukumba Regency” (2025) COMPETITOR: Jurnal Pendidikan Kepelatihan Olahraga, 17(1), pp. 278–292. doi:10.26858/cjpko.v17i1.71202.