Hakim, Y., and Sujarwo. “The Development of Android-Based Mobile Learning on Materials for Preparation and Proclamation of Indonesian Independence for Class VIII Blind Students at MTs Yaketunis Yogyakarta”. JTP - Jurnal Teknologi Pendidikan, Vol. 24, no. 1, Apr. 2022, pp. 93-104, doi:10.21009/jtp.v24i1.25314.