West view Press, 1992
Buku Teks
Moore, John Norton, author
Oceana Publications , 1992
Buku Teks
Routledge, 1994
Buku Teks
edited by Bernhard M. Riegl and Sam J. Purkis
Springer, 2012
eBooks
Forsyth, Frederick, 1938-, author
Bantam Books, 1995
Buku Teks