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Heterogeneity in returns to schooling: Econometric evidence from Ethiopia
Girma, Sourafel, (2005)
Is Education More Benficial to the Less Able? Eocnometric Evidence from Ethiopia
Girma, Sourafel, (2003)
Quadratic Engel Curves with Measurement Error: Evidence from a Budget Survey
Kedir, Abbi, (2007)