Demery, Lionel; Grootaert, C. <br/><br/>
Correcting for sampling bias in the measurement of welfare and poverty. 

 - Washington :  World Bank,  1993. 
<br/><br/> Analysts must pay close attention to sampling procedures used to collect survey data. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Poverty.<br/>Wages -- Sampling.--Wages -- Sampling.