Khandker, S. R., Koolwal, G., & Samad, H. A. [ca. 2010]. Handbook on impact evaluation : quantitative methods and practices [Book]. Washington, D.C: World Bank.

KHANDKER, Shahidur R., KOOLWAL, Gayatri und SAMAD, Hussain A., 2010. Handbook on impact evaluation : quantitative methods and practices. Washington, D.C: World Bank. ISBN 9780821380284.

Khandker, S. R., G. Koolwal, und H. A. Samad. Handbook on impact evaluation : quantitative methods and practices. book, World Bank, 2010.

Khandker, Shahidur R./Koolwal, Gayatri/Samad, Hussain A.: Handbook on impact evaluation : quantitative methods and practices, Washington, D.C 2010.

Khandker, S.R., Koolwal, G. und Samad, H.A. (2010), Handbook on impact evaluation : quantitative methods and practices, Bd. , World Bank, Washington, D.C.