The dollar in crisis / edited, Seymour E. Harris
Harcourt, Brace & World, Inc., 1961
 Buku Teks SO
Rubin, Seymour J.
Private foreign investment legal and economic relations / by Seymour J. Rubin
John Hopkins Press , 1956
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Friedmann, Wolfgang, 1907-1972
Legal aspects of foreign investment
Little, Brown, 1959
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Aspects of library development planning
edited by J. Stephen Parker
Mansell, 1983
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Lewis, William Arthur, 1915-
Some aspects of economic development
University of Ghana by the Ghana Pub, 1971
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