TY  - BOOK
AU  - Shihusa, Hudson
TI  - Effects of advance organisers on students achievement and motivation in the topic pollution in biology: a case study of bureti district,kenya
AV  - QH 320 .K4S55  
PY  - 2006///
CY  - Egerton
PB  -  Egerton university
KW  - Biology - Study And Teaching -Kenya - Bureti District
ER  -