AFIDAH, kharismatul; MOHAMAD FATIH; RAGIL TRI OKTAVIANI. PENGEMBANGAN CROSS NUMBER PUZZLE BERBASIS PJBL UNTUK MENINGKATKAN SELF-EFFICACY PADA MATERI OPERASI HITUNG . Al-Irsyad Journal of Mathematics Education, [S. l.], v. 5, n. 1, p. 230–244, 2025. DOI: 10.58917/ijme.v5i1.560. Disponível em: https://ejurnal.stkipddipinrang.ac.id/index.php/wjme/article/view/560. Acesso em: 1 jan. 2026.