Antti Ahlava, Harry Edelman, editor
Tailor and Francis Group, 2009
Buku Teks
White, Rodney R., author
John Wiley & Sons, 1994
Buku Teks
Marshall, Peter, author
Wiley-Blackwell, 2014
Buku Teks
Hall, Peter, author
Blackwell, 2002
Buku Teks
Wekerle, Gerda R., author
Van Nostrand Reinhold, 1995
Buku Teks