Heckscher, Gunnar
Buku Teks
Hechscher, Gunnar
University of Minnesota Press, 1984
Buku Teks
Myrdal, Gunnar, 1898-
Yale University Press , 1960
Buku Teks
Wilensky, Harold L.
Free Press, 1965
Buku Teks
Hans-Werner Franz, editor
[, Springer], 2012
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