ANALISIS TINGKAT KESUKARAN BUTIR SOAL PILIHAN GANDA MATERI RELASI DAN FUNGSI. Pedagogy: Jurnal Pendidikan Matematika, [S. l.], v. 11, n. 3, p. 229–239, 2026. DOI: 10.30605/y0qbbc04. Disponível em: https://e-journal.my.id/pedagogy/article/view/9356. Acesso em: 17 sep. 2026.