Writer's Digest Bokks, 1994
Buku Teks
edited by Thomas Clark ... [and others]
Writers digest Books, 1994
Buku Referensi
edited by Jean M. Fredette
Writer`s Digest Books, 1988
Buku Teks
Lederer, William J
W W Norton, 1954
Koleksi Publik
Cox, Ailsa, author
Routledge, 2005
Buku Teks