Umam, M., and T. Kusumandyoko. “DESAIN ANTARMUKA APLIKASI PENGENALAN HURUF HIJAIYAH BERBASIS GAMIFIKASI”. BARIK - Jurnal S1 Desain Komunikasi Visual, Vol. 3, no. 3, July 2022, pp. 198-07, https://ejournal.unesa.ac.id/index.php/JDKV/article/view/48077.