MAF’ULAH, S. Reversible Thinking of Fifth Graders: Focus on Linier Equations. Jurnal Ilmiah Sekolah Dasar, [S. l.], v. 6, n. 1, p. 165–175, 2022. DOI: 10.23887/jisd.v6i1.44017. Disponível em: https://ejournal.undiksha.ac.id/index.php/JISD/article/view/44017. Acesso em: 2 dec. 2024.