George Allen and Unwin, 1972
Buku Teks
Oliver, Gordon
Prentice-Hall, 1980
Buku Teks
Azami, Mufti Talha Ahmad, author
Euromoney Institutional Investor PLC, 2011
Buku Teks
Rushton, Alan, author
Kogan Page, 2014
Buku Teks
George Braziller, 1966
Buku Teks