Gopal, M.
McGraw-Hill, 2002
Buku Teks
Hostetter, Gene H., 1939-
Saunders College Publishing, 1989
Buku Teks
Lin, Ching-Fang
Prentice-Hall, 1994
Buku Teks
Haug, Edward J.
Wiley, 1979
Buku Teks
Thompson, S.
Longman Scientific and Technical, 1989
Buku Teks