Donaldson, James H.
Richard D. Irwin, Inc., 1968
Buku Teks
Snider, H. Wayne
Ill. Irwin , 1959
Buku Teks
Kenney, Roger
The Kenney Insurance Studies, 1967
Buku Teks
Brown, Robert L., author
ACTEX Publications, Inc, 2015
Buku Teks
Mowbray, Albert H., author
McGraw-Hill, c1969
Buku Teks