Halimatullah, H. “IMPLEMENTASI DIRECT INSTRUCTION BERBASIS MODUL TUTOR SEBAYA PADA PENGOPERASIAN SOFTWARE PENGOLAH ANGKA(MS.EXCEL) SMK NEGERI I JENEPONTO”. AkMen JURNAL ILMIAH, vol. 16, no. 3, Sept. 2019, pp. 400-13, https://e-jurnal.nobel.ac.id/index.php/akmen/article/view/699.