Workman, Lewis C., author
FLMI Insurance Education Program , 1989
Buku Teks
Munch, James C.
Little, Brown and Company, 1981
Buku Teks
Koller, Michael, author
[Springer-Verlag, ], 2012
eBooks
Black, Kenneth, author
Prentice-Hall, 2000
Buku Teks
Boileau, Wallis, author
Irwin , 1958
Buku Teks