Barnouw, Victor
The Dorsey Press, 1975
Buku Teks
Suggs, Robert C.
America : The New Library American Library, 1960.
Buku Teks
Birket-Smith, Kaj
University of Wisconsin Press, 1965
Buku Teks
the National Museum of Ethnology, 1991
Buku Referensi
Barnouw, Victor
Dorsey Press, 1975
Buku Teks