Alhakim MR, Syarifoeddin EW, Adawiyah SR. DRILLING SHADOW MENINGKATKAN KETEPATAN SERVIS PENDEK BACKHAND BULUTANGKIS SISWA SMA. STRATEGI [Internet]. 2025 Aug. 31 [cited 2026 May 11];5(4):941-50. Available from: https://jurnalp4i.com/index.php/strategi/article/view/10971