Sadgrove, Kit, author
Routledge, 2015
eBooks
Chin, Yee Wah, author
Pearson Prentice Hall, 2004
Buku Teks
Harrington, Scott E., author
McGraw-Hill, 2004
Buku Teks
Harrington, Scott E., author
McGraw-Hill, 2003
Buku Teks
Gordon, Alan
Institute of Risk Management, 1987
Buku Teks