Routledge, 1997
Buku Teks
Victoria Ana Goddard
Routledge, 2000
Buku Teks
edited by Margaret Mead
Greenwood Press, 1953
Buku Teks
Dagron, Alfonso Gumucio, author
The Rockefeller Foundation, 2001
Buku Teks
Rogers, Everett M., author
The Free Press, 1971
Buku Teks