Safitri, Nurul, Nuriman Nuriman, Ridho Alfarisi, and Cahyo Setya. “Model Problem Based Learning Berbantuan Media Flipbook Terhadap Hasil Belajar Matematika Siswa SD ”. Jurnal Review Pendidikan Dasar : Jurnal Kajian Pendidikan dan Hasil Penelitian 10, no. 3 (September 30, 2024): 248–254. Accessed June 9, 2025. https://journal.unesa.ac.id/index.php/PD/article/view/34008.