Grampp, William D.
Richard D. Irwin , 1953
Buku Teks
Leslie, Charles
University of California Press, 1976
Buku Teks
Nahavandi, Afsaneh, author
Pearson/Prentice Hall, 2009
Buku Teks
Wiley-Blackwell, 2011
eBooks
Hewison, Robert, 1943-, author
Methuen, 1995
Buku Teks