Lessing, Doris
Simon and Schuster, 1961
Buku Teks
Pergamon Press, 1986
Buku Teks
H. Djaali, author
Kemitraaan Partnership, 2003
Buku Teks
Collins, William, author
[Dept. of Anthropology, University of California?], 1974
Buku Klasik
Gilbert, Doris W.
Prentice-Hall, 1991
Buku Teks