TY  - BOOK
AU  - Khandker, S. R.
AU  - Koolwal, Gayatri B.
AU  - Samad, Hussain A.
TI  - Handbook on impact evaluation: : quantitative methods and practices 
SN  - 9780821380284
U1  - 338.901 
PY  - 2010///
CY  - Washington
PB  - World Bank
ER  -