New York, N.Y. 1964,
Buku Teks
Tinbergen, Jan, 1903-
Yale University Press, 1964
Buku Teks
Ali Wardhana
[publisher not identified], [date of publication not identified]
Buku Teks
Fachry Ali ...[et al.]
Lspeu Indonesia, 2003
Buku Teks
Clarke, Stephen V.O.
Federal Reserve Bank of New York, 1967
Buku Teks