Oborne, David J., author
John Wiley & Sons, 1995
Buku Teks
Pheasant, Stephen, author
Macmillan, 1991
Buku Teks
Bridger, R.S., author
CRC Press, Taylor & Francis Group, 2009
Buku Teks
Bridger, R.S., author
Taylor and Francis, 2003
Buku Teks
Bridger, R.S., author
McGraw-Hill, 1995
Buku Teks