Dzikri, Afdhol, and Tri Arjo. “Batam Tourism Application Based on Android Mobile”. Journal of Applied Informatics and Computing (JAIC) 2, no. 1 (November 15, 2018): 23-26. Accessed April 18, 2021. https://jurnal.polibatam.ac.id/index.php/JAIC/article/view/1017.