Porter, Philip, author
Haynes, 1995
Buku Referensi
Herrick, Robert, 1591-1674, author
Norton, 1968
Buku Teks
Gibbs, May
Angus & Robertson, 1986.
Buku Teks
Coggle, Paul, author
Kesaint Blanc, 2010
Multimedia
DuBrin, Andrew J., author
Prenada Media Group, 2009
Buku Teks