World Bank. Africa Regional Office. Human Development Department. (2007). Recruiting, retaining, and retraining secondary school teachers and principals in Sub-Saharan Africa. World Bank, Africa Region, Human Development Dept..

World Bank. Africa Regional Office. Human Development Department. Recruiting, Retaining, and Retraining Secondary School Teachers and Principals in Sub-Saharan Africa. Washington, D.C.: World Bank, Africa Region, Human Development Dept., 2007.

World Bank. Africa Regional Office. Human Development Department. Recruiting, Retaining, and Retraining Secondary School Teachers and Principals in Sub-Saharan Africa. World Bank, Africa Region, Human Development Dept., 2007.