Mohan, Ned, author
John Wiley & Sons, 2003
Buku Teks
Libes, Sol, author
Hayden Book, 1975
Buku Teks
Rashid, Muhammad H., author
Prentice-Hall, 2004
Buku Teks
Williams, B.W., author
Wiley, 1987
Buku Teks
Genn, Robert C., author
Prentice-Hall, 1982
Buku Teks