Setyoko, Yoso. “Desain Digital Right Management (DRM) Untuk Perangkat Lunak Berbasis Desktop Menggunakan Teknik Mutual Authentication”. Journal of Informatics Information System Software Engineering and Applications (INISTA) 2, no. 2 (May 21, 2020): 54-60. Accessed April 25, 2024. https://journal.ittelkom-pwt.ac.id/index.php/inista/article/view/124.