Mehr, Robert I., author
Richard D. Irwin, 1969
Buku Teks
Nadia Aulia Anindhita, author
Fakultas Hukum Universitas Indonesia, 2023
UI - Tesis (Membership)
Boyd, William E., author
Prentice-Hall, 1955
Buku Teks
Dinsdale, W.A.
Sir Isaac Pitman & Sons, Ltd. , 1959
Buku Teks
Hyde, William A.
The National Underwriter , 1969
Buku Teks