1.
|
Oxfordshire, United Kingdom : Taylor & Francis Group, 2011. First edition.
|
2.
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Singapore : Butterworths Asia, 2001.
Danish | F 44 NGS.B |
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3.
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Oxford : Oxford University Press, 2022
|
4.
|
Washington, D.C., U.S.A. : World Bank, c1991. Third edition.
English | A 4(111:113) WOR VOL 1 |
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5.
|
Paris : Banque Editeur, [1998] 2ème.
English | B 72 CIC.T(2) |
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