Edel, May
Charles C. Thomas, 1959
Buku Teks
Faubion, James D., author
Cambridge University Press, 2011
Buku Teks
edited by Trudy Turner
State University of New York Press, 2005
Buku Teks
Ember, Carol R., author
Prentice-Hall, 1985
Buku Teks
Haviland, William A., author
Rinehart and Winston, 1974
Buku Teks