SURYANTO, Suryanto. HAMBATAN DALAM MENGAJARKAN MATEMATIKA DI SEKOLAH DASAR. Jurnal Kependidikan: Penelitian Inovasi Pembelajaran, Yogyakarta, Indonesia, v. 30, n. 1, 2015. DOI: 10.21831/jk.v30i1.5114. Disponível em: https://jurnal.uny.ac.id/index.php/jk/article/view/5114. Acesso em: 20 sep. 2025.