Rahmawati M., Nasaruddin, and Lilis Suryani. “Analisis Kesulitan Belajar Siswa Dalam Operasi Hitung Menggunakan Alat Peraga Kelas IV SDN 51 Sumarambu”. Journal of Mathematics, Science Education, and Research 1, no. 1 (January 1, 2024): 61–72. Accessed September 20, 2024. https://ssed.or.id/journal/jmser/article/view/75.