Izzati, Fitri, Hadi Kusmanto, and Toheri Toheri. “Pengaruh Penerapan Teori Van Hiele Berbantuan Software Wingeom Terhadap Kemampuan Penalaran Matematika Siswa Pada Materi Geometri”. ITEJ (Information Technology Engineering Journals) 2, no. 1 (July 25, 2016): 19 - 25. Accessed December 23, 2024. https://syekhnurjati.ac.id/journal/index.php/itej/article/view/13.