Putra, S., & Jupriyanto, J. (2018). APLIKASI PENGENALAN PRESIDEN DAN PAHLAWAN REPUBLIK INDONESIA BERBASIS ANDROID. Journal Of Information System, Applied, Management, Accounting And Research, 2(1), 63-72. Retrieved from https://journal.stmikjayakarta.ac.id/index.php/jisamar/article/view/29