McKendrick, Ewan, author
Oxford University Press, 2012
Buku Teks
Keenan, Denis, author
Pitman, 1989
Buku Teks
Donnell, John D., author
Richard D. Irwin, 1983
Buku Teks
Ryder, Nicholas, author
Cambridge University Press , 2012
Buku Teks
Atiyah, P.S., author
Oxford University Press, 2009
Buku Teks