Khairurraziqin, Khairurraziqin, and Abdul Haris Handoko. 2020. “Pengembangan Instrumen Tes Untuk Mengukur Ketepatan Pukulan Ke Target Dalam Olahraga Softball: (Development of Test Instruments to Measure Accuracy Beat to The Targets in Softball Sports)”. Indonesian Journal of Sport Science and Coaching 2 (1):13-21. https://doi.org/10.22437/ijssc.v2i1.9804.