%D 2019 %T Rear Cover %K %X %U https://jurnal.unej.ac.id/index.php/INFORMAL/article/view/14568 %J INFORMAL: Informatics Journal %0 Journal Article %R 10.19184/isj.v4i2.14568 %V 4 %N 2 %@ 2503-250X %8 2019-11-22