HASIBUAN, Arnita Celin Ully; DORI LUKMAN HAKIM. Kemampuan Pemecahan Masalah Matematis Siswa Dengan Tahapan Polya. Didactical Mathematics, [S. l.], v. 4, n. 1, p. 156–162, 2022. DOI: 10.31949/dm.v4i1.2014. Disponível em: https://ejournal.unma.ac.id/index.php/dm/article/view/2014. Acesso em: 27 apr. 2025.