Morrison, John, author
Penguin Books, 1984
Buku Teks
Design Media Publishing Limited
Design Media Publishing Limited, 2010
Buku Teks
Hoffer, Eric, author
NJ : Hopewell Publications, 2009
Buku Teks
Regulus Nugroho Putro, author
Universitas Indonesia, 1994
UI - Skripsi (Membership)
Clarke, Marcus, author
Hale & Iremonger, c1983
Buku Teks