edited by Barry Turner
Macmillan and The Free Press, 1992
Buku Referensi
edited by Barry Turner
Macmillan, 1992
Buku Referensi
Medan. Universitas Sumatra Utara
Medan: USU Press, 1993,
Buku Referensi
Goverment Information Office, 1993
Buku Referensi
by Association for Investment Management and Research
AIMR , 1993
Buku Teks