TY  - GEN
AU  - Gunasinghe , R.M.
AU  - Vithanage , J.D. 
AU  -  Abeydheera , D .R.
AU  - Hettiarachchi , R.D.
TI  - Physics: electricity block 7
U1  - 537.63 
PY  - 1989///
CY  - Nugegoda
PB  - Open University
KW  - ELECTRICITY
KW  - PHYSICS
ER  -