TY - JOUR AU - Rozy, Fahrur PY - 2018 TI - Cover JF - ROTOR; Vol 11 No 1 (2018) DO - 10.19184/rotor.v11i1.9100 KW - N2 - UR - https://jurnal.unej.ac.id/index.php/RTR/article/view/9100