HIDAYAH, Sendy; RETNOWATI, Endah; THOE, Ng Khar. Adding self-explanation when learning goal free problems could be beneficial. PYTHAGORAS Jurnal Matematika dan Pendidikan Matematika, [S. l.], v. 20, n. 1, 2026. DOI: 10.21831/pythagoras.v20i1.79774. Disponível em: https://journal.uny.ac.id/index.php/pythagoras/article/view/79774. Acesso em: 16 jan. 2026.