Coon, Carleton S., author
Alfred A. Knoff, 1969
Buku Teks
Hoebel, E. Adamson, author
McGraw-Hill, 1966
Buku Teks
Titiev, Mischa
Holf, Rinehart and Winston, 1961
Buku Teks
Montagu, Ashley, 1905-1999, author
New American Library, 1962
Buku Teks
Ember, Carol R., author
Prentice-Hall, 1985
Buku Teks