D. N. Asmara, R. Saputra, and M. Sari, “Pengaruh Penerapan Model Problembased Learning (Pbl) Terhadap Hasil Belajar Matematika Siswa Kelas IV SD Negeri 09 Sitiung”, Innovative, vol. 4, no. 5, pp. 6359–6370, Oct. 2024.