Karp, Rashelle S., author
Garland Publishing, Inc., 1991
Buku Referensi
Bowker, 1991
Buku Referensi
Schofield, Michael
Litle Brown & Co, 1973
Buku Teks
Editedeand with an introduction by Francis Brown
Holt, Rinehart and Winston, 1969
Buku Teks
Covert, Jack, author
Ufuk PressTood Satterten , 2009
Buku Teks