21C hit design hit brand and logo, volume 2
DNBooks, 2008
 Buku Referensi
Gwon, Young-Soo
21C : hit design hit brand & logo
Dnbooks publishing company, 2008
 Multimedia
Gwon, Young-Soo
21C Hit Design Hit Brand & Logo
Dnbooks publishing company, 2008
 Multimedia
Perkins, John
Confessions of an economic Hit Man
Berrett-Kochler, 2004
 Buku Teks SO
Perkins, John
Confessions of an economic hit man
Abdi Tandur, 2005
 Buku Teks SO