SOLEHA, A. Improving Activity and Learning Outcomes by Using Contextual Teaching Learning (CTL) with Van Hiele Theory. Jurnal Axioma : Jurnal Matematika dan Pembelajaran, [S. l.], v. 2, n. 2, p. 197–205, 2017. Disponível em: https://ejurnal.uij.ac.id/index.php/AXI/article/view/302. Acesso em: 29 mar. 2024.