Hirschman, Albert O.
Yale University Press, 1965
Buku Teks
Kuznets, Simon Smith, 1901-, author
Yale University Press, 1966
Buku Teks
Myrdal, Gunnar, 1898-, author
Gerald Dukworth & Co. Ltd., 1957
Buku Teks
Eltis, W.A.
Hutchinson University Library , 1966
Buku Teks
International Labour Office, 1964
Buku Teks