Gaya APA
Williams, Arthur, Heins, Richard M. (1989).
Risk Management and Insurance .
Singapore:
McGraw-Hill.
Gaya Chicago
Williams, Arthur, Heins, Richard M.
Risk Management and Insurance.
Singapore:
McGraw-Hill,
1989.
Buku Teks.
Gaya MLA
Williams, Arthur, Heins, Richard M.
Risk Management and Insurance.
Singapore:
McGraw-Hill,
1989.
Buku Teks.
Gaya Turabian
Williams, Arthur, Heins, Richard M.
Risk Management and Insurance.
Singapore:
McGraw-Hill,
1989.
Buku Teks.