1. Adkins, L. C. & Moomaw, R. L. (2007). Analyzing the technical efficiency of School Districts in Oklahoma. Journal of Economic Insight, Missouri Valley Economic Association, 33(2), 41–61.
2. Anand, S, & Sen, A. (1997). Concepts of human development and poverty: A multidimensional perspective, in poverty and human development process (pp. 1–20). United Nations Development Programme.
3. Andrews, M., Duncombe, W., & Yinger, J. (2002). Revisiting economies of size in American education: Are we any closer to a consensus? Economics of Education Review, 21, 245–262.
4. Arshad, M. N. M. (2014). Efficiency of secondary education in selected OIC countries. Global Education Review, 1(4), 53–75.
5. Banker, R. D., Charnes, A., & Cooper, W. W. (1984). Some models for estimating technical and scale inefficiencies in data envelopment analysis. Management Science, 30(9), 1078–1092.