TY  - BOOK
AU  - Karunarathna , Senadeera 
TI  - à¶´à¶»à·à¶à¶«à¶à¶º à·à· à¶­à·à¶»à¶­à·à¶»à· à¶­à·à¶à·à·à¶«à¶º
SN  - 9559654101
U1  - 001.64 
PY  - 0000///[N.D.]
CY  - Kudauduwa
PB  - Bhagya
KW  - research and scientific method
ER  -