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Higher education, human capital and labour market segmentation in the Sudan
Sanyal, Bikas C., (1976)
Correspondence between education and the world of work (An alternative way of looking at labour force data with examples from Sudan, Singapore, Korea and Thailand) : a contribution to the IIEP research project on employment, the nature of work and educational planning
Hallak, Jaques, (1978)
The semi-input-output method under upper bounds
Cornelisse, Peter A., (1969)