PRAYITNO, Anton; ROSSA, Alvia; WIDAYANTI, Febi Dwi. Level penalaran proporsional siswa dalam memecahkan missing value problem. Jurnal Riset Pendidikan Matematika, [S. l.], v. 6, n. 2, p. 177–187, 2019. DOI: 10.21831/jrpm.v6i2.19728. Disponível em: https://jurnal.uny.ac.id/index.php/jrpm/article/view/19728. Acesso em: 8 jun. 2025.