Fatimah, Fita. “IDENTIFIKASI PEMAHAMAN KONSEP SISWA SMP MTs PADAMATERI GERAK MENGGUNAKAN THREE-TIER TEST”. Education Journal : Journal Educational Research and Development, vol. 1, no. 2, May 2018, pp. 116-24, http://jurnal.unipar.ac.id/index.php/ej/article/view/70.