Fogg, Marnie
Thames & Hudson, 2011
Buku Teks
Design Media Publishing Limited, 2011
Buku Referensi
Fromm, Jeff
[American Management Association, ], 2013
eBooks
Fromm, Jeff
[American Management Association, ], 2012
eBooks
Chase, Stuart
Harper & Row Publisher, 1968
Buku Teks