Yusuf, Yulia -. “Developing Hiragana’s Imagination Media Based On Android Studio As A Fast Way To Memorize Japanese Letters For The X Grade Students Of MAN 2 Mojokerto”. Inovasi: Jurnal Diklat Keagamaan, vol. 15, no. 1, June 2021, pp. 42-53, doi:10.52048/inovasi.v15i1.210.