TY  - BOOK
AU  - Gunasekara, Samarasinghe
AU  - Wijayarathna, Ashoka
TI  - Usas pelata arthika vidyava
U1  - 330 
PY  - 1983///
CY  - Nugegoda
PB  - Sathruwan Padanama
N1  - L
ER  -