Doren, Mark van
Doubleday , 1955
Buku Teks
Cambridge University Press, 1973
Buku Teks
Goode, Richard
John Wiley & Sons, 1951
Buku Teks
edited by Edward B. Esphansade, Joel L. Morrison
Rand McNally & Co, 1966-1978
Buku Referensi
Goody, Roy W.
New York Glencoe 1992,
Buku Referensi