edited by Gary Hoover, Alta Campbell, Patrick Spain
The Reference Press, 1991
Buku Referensi
edited by Gary Hoover, Acta Campbell, Patrick J, Spain
The Reference Press, 1991
Buku Referensi
National Council of Farmer Cooperatives , 1992
Buku Teks
Prentice-Hall, 1991
Buku Referensi
Association for Investment Management and Research, 1992
Buku Teks