Somerville, George, author
Taylor and Francis, 2008
Buku Teks
Blight, Geoffrey E., author
CRC Press , 2011
Buku Teks
Balaguru, Perumalsamy N., author
Taylor &Fransic, 2009
Buku Teks
edited by Susan Macdonald ; foreword by David Watt & Pater Swallow.
Blackwell Sience, 2003
Buku Teks
Michael G. Grantham, editor
Routledge, 2011
Buku Teks