TY  - BOOK
AU  - Rathnapala, N
TI  - Samaja viddya paryeshana muuladarma
SN  - 9555530025
U1  - 300.72 
PY  - 1987///
CY  - Varakapola
PB  - Arya Publishers
KW  - Social Science
KW  - Research
ER  -