Murphy, James Frendrick, author
Lea & Febiger, 1977
Buku Teks
edited by Allan McNaught
Chapman and Hall , 1991
Buku Teks
Brightbill, Charles K.
Prentice-Hall, 1961
Buku Teks
Ramhadtu Prasaditama, author
Sage, 2014
Buku Teks
Rojek, Chris, author
Palgrave Macmillan, 2005
Buku Teks