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Education, experience and earnings in the labor market of a developing economy: The case of urban Khartoum
Cohen, Barney, (1994)
Educational and vocational training for the promotion of productivity and incomes in the informal sector (with a case study from Khartoum, Sudan)
Cohen, Barney, (1997)
The characteristics of the labour force and labour market functioning
Cohen, Barney, (1996)