Efektivitas Pendekatan Concrete-Representational-Abstract (CRA) Terhadap Peningkatan Hasil Belajar Matematika Siswa Kelas I MI Khoiru Ummah. Jurnal Penelitian Ilmiah Multidisipliner , [S. l.], v. 3, n. 02, 2026. DOI: 10.70294/1njja702. Disponível em: https://ojs.ruangpublikasi.com/index.php/jpim/article/view/2524.. Acesso em: 23 sep. 2026.