TY  - GEN
AU  - Gunasinghe ,  R.M.
AU  - Dhanayake , C  
AU  - Hettiarachchi  , R.D. 
AU  - Liyanage , L.S.G. 
AU  -  Senaratne , U.U.
TI  - Physics properties of matter
U1  - 530.412 
PY  - 1986///
CY  - Nugegoda
PB  - Open University
KW  - Physics
ER  -