Rustiawan, Hendra Rustiawan, and Andang Rohendi. “Dampak Latihan Push-up Bola Bergulir Dan Push-up Tubing Pada Hasil Peningkatan Daya Tahan Otot Lengan”. JOSSAE (Journal of Sport Science and Education) 6, no. 1 (April 30, 2021): 74–86. Accessed April 29, 2024. https://journal.unesa.ac.id/index.php/jossae/article/view/10001.