Chalfant, H. Paul
West Publishing Company, 1988
Buku Teks
edited by H. Russell Bernard and Pertti J. Pelto
Macmillan, 1972
Buku Teks
Murdock, George Peter
Free Press, 1965
Buku Teks SO
Glezerman, Grigory
Foreign Languages Publishing House, [date of publication not identified]
Buku Teks
Loomis, Charles P.
D Van Nostrand , 1965
Buku Teks SO