Shihusa, Hudson <br/><br/>
Effects of advance organisers on students achievement and motivation in the topic pollution in biology  a case study of bureti district,kenya. 
Hudson Shihusa 
 - Egerton   Egerton university  2006 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology - Study And Teaching -Kenya - Bureti District
<br/><br/><label>LC Class. No.: </label>QH 320 .K4S55