ARFIANA, Ayu; WIJAYA, Ariyadi. Problem solving skill of students of senior high schools and Islamic high schools in Tegal Regency in solving the problem of PISA based on Polya’s stage. Jurnal Riset Pendidikan Matematika, [S. l.], v. 5, n. 2, p. 211–222, 2018. DOI: 10.21831/jrpm.v5i2.15783. Disponível em: https://jurnal.uny.ac.id/index.php/jrpm/article/view/15783. Acesso em: 8 jun. 2025.