NICO PRADANA, Lingga. Problem-solving Strategy: Mathematical Problem-solving Model Within the Polya’ Framework. KnE Social Sciences, [S. l.], v. 9, n. 6, p. 728–740, 2024. DOI: 10.18502/kss.v9i6.15327. Disponível em: https://knepublishing.com/index.php/KnE-Social/article/view/15327. Acesso em: 20 jul. 2025.