Winick, Charles, author
Littlefield, Adams & Co., 1961
Buku Referensi
edited by Thomas Barfield
Blackwell, 1997
Buku Referensi
Ingold, Tim, 1948-, author
Routledge, 2018
Buku Teks
Ember, Carol R., author
Prentice-Hall, 1985
Buku Teks
Haviland, William A., author
Rinehart and Winston, 1974
Buku Teks