BUSTANIKA, L. H.; SUPARMAN. Design of pop up book based on realistic mathematics education to improving spatial ability students of class VIII. Jurnal Pendidikan Bitara UPSI, [S. l.], v. 12, n. 1, p. 1–9, 2019. DOI: 10.37134/bitara.vol12.1.2019. Disponível em: https://ojs.upsi.edu.my/index.php/JPB/article/view/2651. Acesso em: 3 may. 2024.