PENGARUH MODEL PEMBELAJARAN SELF-DIRECTED LEARNING (SDL) PADA MATERI FLUIDA DINAMIS TERHADAP HASIL BELAJAR SISWA KELAS XII SMA SWASTA PGRI-1 MEDAN. JGGE [Internet]. 2025 Dec. 3 [cited 2026 May 31];1(1):67 – 78 . Available from: https://lppnusantara.com/index.php/JGGEducation/article/view/62