TY  - BOOK
AU  - Gunasekara, Upali
TI  - ජීවන නිපුණතා
SN  - 9559662309
U1  - 371.4 
PY  - 1999///
CY  - Kalagedihena
PB  - Author
KW  - Knowledge
KW  - Education
ER  -