Morton, Kathryn
Trade and developing countries / Kathryn Morton and Peter Tulloch
The English Language Book Society, 1978
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Group techniques / Gerald Corey ...[et al.].
Brooks/Cole Publishing , 1982
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Levin, Jonathan V.
The export economies : their pattern of development in historical perspective / Jonathan V. Levin
Harvard University Press , 1960
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Zenoff, David B.
Private enterprise in the developing countries / David B. Zenoff
Prentice-Hall, 1969
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Verbit, Gilbert P.
Trade agreements for developing countries / Gilbert P. Verbit
Columbia University Press, 1969
 Buku Teks