Ingrisano, John R., author
Chicago, Dearborn Financial Publishing, 1990
Buku Referensi
Muller-Lutz, Heinz L., author
Verlag Versicherungswirtschaft, 1994
Buku Referensi
Kongstvendt, Peter R., author
Jones & Bartlet Learning, 2009
Buku Teks
Black, Kenneth, author
Prentice-Hall, 2000
Buku Teks
R & R Newkirk/Longman, 1985
Buku Referensi