Jamil, Mohammad Assayed, author
ISESCO, 1999
Buku Teks
Jarvis, Peter J., author
Prentice-Hall, 2000
Buku Teks
McCaffrey, Stephen C., author
Thomson/West, 2009
Buku Teks
Smith, David Lee, author
John Wiley & Sons, 2011
Buku Teks
King, James J., author
John Wiley & Sons, 1995
Buku Referensi