“PRACTICE MANAGING INTERNET CONNECTION CAMPUS AREA NETWORK (CAN) WITH FIREWALL AND ADDRESS LIST MIKROTIK ROUTER OS”. Jurnal Techno Nusa Mandiri, vol. 10, no. 1, Maret 2013, hlm. 132-4, https://ejournal.nusamandiri.ac.id/index.php/techno/article/view/566.