TY  - BOOK
AU  - Yaghi,Moustapha
AU  - Abbas,Ali
TI  - Physics Grade nine
T2  - The National Textbook Project
U1  - M. 9e 
PY  - 2000///
CY  - Sin-El-Fil
PB  - Educational center for research and development
KW  - physique
ER  -