TY  - BOOK
AU  - Obara, Clement
TI  - Longman explore Physics student book :  form 4 
SN  - 978 9966 06 684 8 9966 06 684 5
U1  - 530 076 OBA 
PY  - 2005///
CY  - Nairobi 
PB  -  Longman
KW  - PHYSICS SECONDARY
ER  -