Safrudin Fahmi, Melfa Br Nababan, Orbit Irwansyah. ENHANCING THE MASTERY OF LONG SERVICE BADMINTON TECHNIQUES USING THE DRILL METHOD AMONG ELEVENTH- GRADE STUDENTS AT SMA NEGERI 1 BADAR. IJSET [Internet]. 2025 May 30 [cited 2026 May 2];4(6):4500-6. Available from: https://ijset.org/index.php/ijset/article/view/1334