Bishop, Matt, author
Addison-Wesley, 2003
Buku Teks
Bono, Edward de, author
Fontana, 1991
Buku Teks
Basmadjian, Diran, author
Chapman & Hall/CRC , 2007
Buku Teks
Loveridge, Denis, author
Routledge, 2009
Buku Teks
Mathur, Kamlesh, author
Prentice-Hall, 1994
Buku Teks