Roddy, Dennis
Pergamon Press, 1978
Buku Teks
Colclaser, Roy A.
John Wiley & Sons, 1980
Buku Teks
Horenstein, Mark N.
Prentice Hall International, Inc., 1996
Buku Teks
Millman, Jacob
Erlangga, 1987
Buku Teks
Carroll, John Millar, 1925-
McGraw-Hill , 1965
Buku Teks