Investment laws of the world
New York: Oceana Publications,Inc, 1987,
 Buku Referensi
Investment laws of the world
New York: Oceana Publications,Inc, 1994,
 Buku Referensi
Investment laws of the world
New York: Oceana Publications,Inc, 1994,
 Buku Referensi
Investment laws of the world
New York: Oceana Publications,Inc, 1994,
 Buku Referensi
Investment laws of the world
Oceana Publications,Inc, , 1994
 Buku Referensi