Writing lives : conversations between women writers
edited by Mary Chamberlain
Virago Press, 1988.
 Buku Teks SO
Thomas, Graham A.
The Dan Brown enigma : the biography of the world's greatest thriller writer
John Blake, 2011
 Buku Teks
The World almanac and book of facts 1988
Newspaper Enterprise Association, 1987
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The World almanac and book of facts 1986
Newspaper Enterprise Association, 1985
 Buku Referensi
The World almanac and book of facts 1983
Newspaper Enterprise Association, 1982
 Buku Referensi