Saffady, William, author
Arma Internasional, 2004
Buku Teks
Ludlum, Robert
Grafton, 1991
Buku Teks
Clayton, Peter, author
Facet Publishing, 2006
Buku Teks
Clayton, Peter, author
Library Association Publishing, 2001
Buku Teks
s l. : s n. 2006,
Buku Teks