Voyles, Bruce A., author
McGraw-Hill, 2002
Buku Teks
Conrat, Heinz Fraenkel
Academic Press, 1962
Buku Teks
Cooper, J.I., author
Chapman and Hall, 1984
Buku Teks
Mader, Sylvia S., author
McGraw-Hill , 1998
Buku Teks
Case, James F., author
Macmillan, 1979
Buku Teks