A. Susanto and K. Kamarudin, “The Contribution of Leg Muscle Power and Ankle Coordination to the Long-Distance Kicking Ability of Extracurricular Students of SMPN 25 Pekanbaru: Kontribusi Power Otot Tungkai Dan Koordinasi Mata Kaki Terhadap Kemampuan Tendangan Jarak Jauh Siswa Ekstrakurikuler SMPN 25 Pekanbaru”, ORKES, vol. 1, no. 3, pp. 777–785, Jan. 2023.