Mulbasari, Anggria Septiani, and Nora Surmilasari. 2018. “Pengaruh Bahan Ajar Berbasis Contextual Teaching and Learning (CTL)Terhadap Kemampuan Penalaran Matematis Siswa SMA”. Jurnal Elemen 4 (2):197-203. https://doi.org/10.29408/jel.v4i2.719.