The Export-Import Bank of Japan, 1991
Buku Teks
Lund, Philip J., author
Oliver & Boyd, 1971
Buku Teks
Dylan Thomas Carolus Lapya, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2014
UI - Tesis (Membership)
Suhardono Sudjono, author
1997
UI - Tesis (Membership)
George, F.H., author
Abacus Press, 1984
Buku Teks