Houghton Mifflin, 1976
Buku Teks
Moncrieff, A.R. Hope, author
Gramercy Books, 1995
Buku Referensi
Rosenberg, Donna, author
NTC Publishing Group , 1994
Buku Teks
Cotterell, Arthur, author
Lorenz Books, 2013
Buku Teks
Leick, Gwendolyn, author
Routledge, 1998
Buku Referensi