Hanlon, Don, author
John Wiley & Sons, 2009
Buku Teks
Borden, Gail Peter, author
Routledge, 2014
Buku Teks
Ching, Francis D.K., 1943-, author
John Wiley & Sons, 2015
Buku Teks
Padovan, Richard, author
E&FN Spon, 1999
Buku Teks
Blackwell, William
Wiley, 1984
Buku Teks