الإتاحة: https://doi.org/10.22146/ifnp.87482Testhttps://journal.ugm.ac.id/ifnp/article/view/87482Test
الإتاحة: https://doi.org/10.22146/ijcn.27617Testhttps://jurnal.ugm.ac.id/jgki/article/view/27617Test
الإتاحة: https://doi.org/10.22146/ijcn.15365Testhttps://jurnal.ugm.ac.id/jgki/article/view/15365Test