Maysaroh, Efi, and Sri Sutarni. “Improving Students’ Ability to Solve HOTS-Based Mathematics Problems With Problem-Solving Theory from Polya”. Vygotsky: Jurnal Pendidikan Matematika dan Matematika 5, no. 2 (August 30, 2023): 91–100. Accessed November 22, 2024. https://jurnalpendidikan.unisla.ac.id/index.php/VoJ/article/view/738.