TY  - BOOK
AU  - Rathnasiri, Nalini
TI  - Journal of the national  science foundation of Sri Lanka: December 2006
T2  - Journal of the National Science Foundation of Sri Lanka
SN  - 1391-4588
U1  - B0798 
CY  - Colombo
PB  - National Foundation of Sri Lanka
KW  - BOOK BOX 798
ER  -