Bodner, George M.
Burgess, 1981
Buku Teks SO
Sackheim, George I.
Macmillan, 1973
Buku Teks SO
by Robert W. Parry ... [and others]
Prentice-Hall, 1970
Buku Teks SO
Pimentel, George C.
Holden-Day, 1971
Buku Teks SO
Oxtoby, David W.
Thomson, Brooks/Cole, 2003
Buku Teks SO