Lubis, Roslian, Toharuddin Harahap, and Dwi Putria Nasution. “Pendekatan Open-Ended Dalam Membelajarkan Kemampuan Koneksi Matematis Siswa”. Mosharafa: Jurnal Pendidikan Matematika 8, no. 3 (September 30, 2019): 399–410. Accessed November 22, 2024. https://journal.institutpendidikan.ac.id/index.php/mosharafa/article/view/576.