Improving Volleyball Passing and Smashing Skills with Modified Assistive Devices at SDN Kemayoran 01 Bangkalan. JIK [Internet]. 2025 Jun. 10 [cited 2026 Mar. 23];24(1):26-35. Available from: https://jurnal.unimed.ac.id/2012/index.php/JIK/article/view/65662