Business, trade and economic progress in cambodia Shri H.M. Mahatni
Artikel Jurnal
Beard, Charles A.
The Making of American civilization
Macmillan, 1948
Buku Teks SO
Moulton, Harold G.
Income and economic progress
Brookings Institution, 1935
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Economic progress and social welfare
edited by Leonard H. Goodman
Columbia University Press, 1966
Buku Teks SO
Boyd, Maurice
American civilization : an introduction to the social sciences
Allyn and Bacon, 1969
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