Analisis Kesulitan Belajar Operasi Hitung pada Siswa Kelas II SD Negeri 2 Karangan di Klaten. Mathematical Proceedings of The Widya Mandira Catholic University, [S. l.], v. 1, n. 1, p. 142–150, 2024. Disponível em: https://www.journal.unwira.ac.id/index.php/SEMNAPTIKA/article/view/3228. Acesso em: 30 jun. 2026.