Fadhil, M, and Alficandra Alficandra. 2024. “Contribution of Arm Muscle Explosive Power and Eye-Hand Coordination to Servicing Accuracy at SMPN 21 Pekanbaru Volleyball Club: Kontribusi Daya Ledak Otot Lengan Dan Koordinasi Mata -Tangan Terhadap Ketepatan Servis Atas Klub Bolavoli SMPN 21 Pekanbaru”. Jurnal Olahraga Dan Kesehatan (ORKES) 3 (1):15-25. https://doi.org/10.56466/orkes/Vol3.Iss1.102.