Harris, Charles Edison
Van Nostrand Reinhold, 1983
Buku Teks
Klotz. James M.
Kluwer, 2008
Buku Teks
Michael Soon Lee with Sensei Grant Tabuchi
American Management Association, 2007
eBooks
Salacuse, Jeswald W.
Century Business, 1992
Buku Teks SO
Blackman, Carolyn
Allen & Unwin, 1997
Buku Teks SO