Paterson, Craig, author
Learning Matters, 2011
Buku Teks
Hood, Roger G., author
McGraw-Hill, 1971
Buku Teks
Keith Bryett [and others]
Batterworths, 1993
Buku Teks
Barlow, Hugh D.
Litle, Brown and Company, 1984
Buku Teks
Joyce, Peter, author
Routledge, 2018
Buku Teks