TY  - GEN
AU  - Koolwal, Gayatri B.
AU  - Samad, Hussain A.
ED  - World Bank.
TI  - Handbook on impact evaluation : quantitative methods and practices
SN  - 9780821380284
PY  - 2010///
CY  - Washington, D.C. : 
PB  - World Bank
KW  - Economic development
KW  - Economic assistance
KW  - Project evaluation
ER  -