Khakim, Muhammad, et al. “Implementasi Program Latihan Plyometric Terhadap Kecepatan Dan Daya Ledak Otot Tungkai Pada Atlet Futsal SMA Negeri 1 Cerme: Implementation of Plyometric Training Program on Speed ​​and Explosive Power of Leg Muscles in Futsal Athletes of SMA Negeri 1 Cerme”. Indonesian Strength Conditioning and Coaching Journal, vol. 4, no. 1, Aug. 2026, pp. 181-9, https://ejournal.unesa.ac.id/index.php/isco/article/view/82444.