Wallace, Michael, author
American Management Association, 2011
eBooks
McCarthy, N.K., author
McGraw-Hill, 2012
Buku Teks
Hamid Jahankhani, David Libum Watson, Gianluigi Me, Frank Leonhardt, editor
World Scientific, 2010
Buku Referensi
edited by Vincent G. Duffy
CRC Press, 2009
Buku Referensi
edited by Nitin Indurkhya; Fred J. Damerau
CRC Press, 2010
Buku Teks