Ulfah, Syafika, and Salmy Fernandez. “ANALISIS KESULITAN BELAJAR MATEMATIKA SISWA TUNAGRAHITA”. Pedagogy: Jurnal Pendidikan Matematika 10, no. 2 (April 29, 2025): 227–234. Accessed July 23, 2025. https://e-journal.my.id/pedagogy/article/view/5768.