MALAU, S.; ., S.; ., Y. Analysis of Obstacles in Learning Integers Operation : Case Study in VII Grade of SMP Katolik St Paulus Palangka Raya. Jurnal Pendidikan, [S. l.], v. 22, n. 2, p. 116–129, 2022. DOI: 10.52850/jpn.v22i2.3994. Disponível em: https://e-journal.upr.ac.id/index.php/JPN/article/view/3994. Acesso em: 22 dec. 2024.