“Implementasi Model Problem Based Learning Berbantu Media Flash Card Untuk Meningkatkan Hasil Belajar Kognitif IPAS Kelas IV” (2023), 1(2), pp. 3250–3258. Available at: https://conference.upgris.ac.id/index.php/psnppg/article/view/5659 (Accessed: 13 August 2026).