Reddy, J. N., author
John Wiley & Sons, 1982
Buku Teks
Croft, Anthony, author
Prentice-Hall, 1995
Buku Teks
Burghardt, M. David
McGraw-Hill, 1999
Buku Teks
Crandall, Stephen H., editor
McGraw-Hill, 1956
Buku Teks
Beakley, George C
Macmillan, 1972
Buku Teks