Roelofs, H. Mark
The Dorsey press, 1968
Buku Teks SO
Deutsch, Karl Wolfgang, 1912-1992
Houghton Mifflin, 1970
Buku Teks
Stoker, Gerry
Macmillan, 1991
Buku Teks SO
Punnett, R.M.
Dartmouth, 1994
Buku Teks SO
Stephen J. Wayne [et all.]
Thomson, 2005
Buku Teks SO