4 1 50 Perlindungan Merek dalam Cyberspace (Cybersquatting terhadap Merek) Muhammad Amirullah Primary Author mixed material 9786026322593 Bandung PT Refika Aditama 2017 9786026322593_Cyberlaw-Perlindungan-Merek-Dalam-Cyberspace.jpg.jpg Amirullah Primary Author Imam Hardjanto Additional Author mixed material 9797560329 Yogyakarta Graha Ilmu 2005 Pengantar_bisnis.jpg.jpg Amirullah Primary Author mixed material 9786023160448 Jakarta Mitra Wacana Media 2015 160109164525PengantarMAnajemenOK%2804032015%29potonganweb-500x500.jpg.jpg Amirullah Primary Author Budiyono, Haris Additional Author mixed material 9793289848 Yogyakarta Graha Ilmu 2004