000 00470 a2200181 4500
020 _a9552072557
041 _aSn
082 _a001.425
_bSEN
100 _aSenadheera , Silvi
245 _aපර්යේෂණ ක්‍රමවේදය
260 _c2004
_aColombo
_bS.Godage
_g2007
300 _bill.
_c22 cm.
_axxiv,184 p.
650 _aRESEARCH METHODS
650 _aGENERALITIES
700 _aWanasinghe , Shaminda
856 _uwww.godage.com
942 _cSC
999 _c41125
_d42672