1.
Peningkatan Hasil Belajar Matematika Materi Bilangan Bulat Berbantuan Alat Peraga OBIBUL Siswa Kelas VI. psnppg. 2023;1(2):2314-2320. Accessed August 12, 2026. https://conference.upgris.ac.id/index.php/psnppg/article/view/5384