Peter Cook [and others], editor
Wiley-Academy, 2001
Buku Teks SO
Rickels, Laurence A.
University of Minnesota, 1999
Buku Teks SO
edited by Joan C. Chrisler, Carla Golden, Patricia D. Rozee
McGraw-Hill, 2000
Buku Teks SO
Bowler, M.C.
Pergamon Press, 1982
Buku Teks SO
Yukalov, V.I.
World Scientific, 1990
Buku Teks SO