FIFI, F. PEMANFAATAN BLACKBERRY MESSENGER PADA KANTOR NOTARIS DI KOTA BATAM. Computer Based Information System Journal, [S. l.], v. 3, n. 1, 2015. Disponível em: https://ejournal.upbatam.ac.id/index.php/cbis/article/view/394. Acesso em: 28 apr. 2024.