Research design, data collection and analysis :  a training manual / 
ed. by Peter Ngau, Asfaw Kumssa. 
 - Nairobi :  UNCRD,  2004. 
 - x, 272 p. 
<br/><br/><label>ISBN: </label>490623691X :  KES 550 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Research.<br/>Social sciences--Statistical methods.
<br/><br/><label>LC Class. No.: </label>HA29  / .R47