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1,1. Report of the Director-General. Part 1. - IV,92 S. : 9 Tab. - ISBN 92-2-101797-4.; 1,2. Report of the Director-General. Part 2. - III,49 S. : 5 Tab., Lit.Hinw. - ISBN 92-2-101805-9.; 2. Improvement and harmonisation of social security systems in Africa. - II, 67 S. : 2 Tab., Lit.Hinw. - ISBN 92-2-101798-2.; 3. Education and development. - II,103 S. : Lit.Hinw. - ISBN 92-2-101799-0
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