Efektivitas Pendekatan Concrete-Representational-Abstract (CRA) Terhadap Peningkatan Hasil Belajar Matematika Siswa Kelas I MI Khoiru Ummah. JPIM [Internet]. 2026 Jul. 31 [cited 2026 Sep. 23];3(02). Available from: https://ojs.ruangpublikasi.com/index.php/jpim/article/view/2524