Cesaria, Anna, Tatang Herman, and Jarnawi Afgani Dahlan. “Level Berpikir Geometri Peserta Didik Berdasarkan Teori Van Hiele Pada Materi Bangun Ruang Sisi Datar”. Jurnal Elemen 7, no. 2 (July 13, 2021): 267–279. Accessed December 21, 2024. https://e-journal.hamzanwadi.ac.id/index.php/jel/article/view/2898.