TY  - BOOK
AU  - Perera, Lal 
AU  - Wijetunge, Swarna 
TI  - National Assessment of Achievement of Grades 8 & 10 Students in Sri Lanka : National Report 
SN  - 9789551187149
PY  - 2007///
CY  - Colombo
PB  - NEREC
KW  - Research Report
ER  -