Toward a strategy of excellence: A systemic analysis and policy research based on external variables in SSA

Cohen, E. H. (1995).

Toward a strategy of excellence: A systemic analysis and policy research based on external variables in SSA. In J.J. Hox, G.J. Mellenbergh & P.G. Swanborn (Eds.), Facet theory: Analysis and desing (pp. 55-62). Amsterdam: University of Amsterdam.