Impact evaluation in practice 
/ Paul J. Gertler [et al...] 
 - Washington :  The World Bank,  c2016 
 - xxviii, 335 p. :  ill. ;  25 cm 
<br/><br/><br/>eng 
<br/><br/><label>ISBN: </label>9781464807800  TZS 93,700/= 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ethics<br/>Constructing a Theory of change
<br/><br/><label>Dewey Class. No.: </label>338.90072 IMP