Tinbergen, Jan, 1903-
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Buku Teks
Lewis, W. Arthur
Public Affairs , 1951
Buku Teks
Baumol, William J., author
N.Y. Harcourt Brace Jovanovich , 1982
Buku Teks
Fabella, Armand V.
University of the Philippines, 1968
Buku Teks
Petrakis, Panagiotis, author
Springer-Verlag, 2014
Buku Teks