Anton, Howard
John Wiley & Sons, 1984
Buku Teks SO
Anderson, Daniel
Brooks/Cole, 1999
Buku Teks SO
Boxer, Robert J.
McGraw-Hill, 1998
Buku Referensi
Marsden, Jerrold E.
W.H. Freeman, 1976
Buku Teks SO
Fessenden, Ralph J.
Willard Grant Press, 1979
Buku Teks SO