24 IZA Discussion Papers
IZA Discussion Paper No. 1295
published as 'Effect of Secondary School Fees on Educational Attainment' in: Scandinavian Journal of Economics, 2012, 114 (1), 147 - 176
IZA Discussion Paper No. 1247
published in: Higher Education, 2009, 57 (4), 429-448
IZA Discussion Paper No. 848
IZA Discussion Paper No. 503
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