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8UNCTC, 1992, "The Determinants of Foreign Direct Investment: A Survey of the Evidence", New York, United Nations Publication.
9UNCTC, 1992, "World Investment Report 1992: Transnational Corporations as Engines of Growth", New York, United Nations Publication.
10United Nations Conference on Trade and Development (UNCTAD), 1993, "World Investment Report 1993: Transnational Corporations and International Production", New York, United Nations Publication.