Huda, Asrul, Nelda Azhar, Almasri Almasri, Suryo Hartanto, and Khairul Anshari. 2020. “Practicality and Effectiveness Test of Graphic Design Learning Media Based on Android”. International Journal of Interactive Mobile Technologies (iJIM) 14 (04):pp. 192-203. https://doi.org/10.3991/ijim.v14i04.12737.