Agnes Sinaga C, Sirait M. Pengaruh Model Pembelajaran Kooperatif GI Berbantuan Macromedia Flash terhadap Hasil Belajar Fisika SMA. JPMS [Internet]. 2021 Jul. 28 [cited 2025 Jul. 5];9(1):42-7. Available from: https://journal.uny.ac.id/index.php/jpms/article/view/26102