000			00577 a2200205 4500
999			_c35820 _d37367
003			ISURa
008			150313b xxu||||| |||| 00| 0 eng d
020			_a8173280363
041			_aSinhala
082			_a001.42 _bKOT
100			_aKothari , C.R. _921839
245			_aResearch methodology _bmethods and techniques
250			_a2nd ed.
260			_c1990 _aNew Delhi _bWishwa Prakashan
300			_bill. _c22 cm. _axii , 468 p.
650			_aRESEARCH - METHODS _92654
650			_aRESEARCH - TECHNIQUES _980826
650			_aRESEARCH METHODOLOGY _91495
942			_cSR _2ddc