Hanrayani, H.; Iswanto, A. Interactive Multimedia And Direct Instruction Elevate Volleyball Mastery For Slow Learners: Multimedia Interaktif Dan Instruksi Langsung Mengangkat Penguasaan Voli Siswa Lamban Belajar. acopen 2026, 11, 10.21070/acopen.11.2026.15166.