Czerniawski, Gerry
Open University Press, 2013
Buku Teks
Laskey, Marcia L.
Allyn and Bacon, 1997
Buku Teks
Delphin, Patricia
Virgnia Reston publishing 1983 , 1983
Buku Teks
Richards, Jack C.
Cambridge University Press, 2005
Buku Teks
Howard Kunreuther
Wharton School Pub., 2010
Buku Teks