http://www.jurnalmudiraindure.com/kemampuan-menguasai-materi-sistem-persamaan-linear-tiga-variabel-siswa-sma-negeri-14-iskandar-muda-banda-aceh/ Pusat Publish Jurnal Indonesia Sun, 16 Oct 2016 13:26:29 +0000 hourly 1 https://wordpress.org/?v=5.3.2