Bradford, Frederick A.
Longmans, Green, 1932
Buku Teks
Rodgers, Raymond
Alexander Hamiltion Institute, 1962
Buku Teks
Lastra, Rosa Maria
The Financial Markets Group, 1996
Buku Teks
Lewis, Mervyn Keith
Edward Elgar, 2001
Buku Teks
Sayers, R.S.
Oxford University Press , 1967
Buku Teks