000			00436nam a22001697a 4500
020			_a9789380138572
082			_a370.72 _bAJA/E
100			_aAjay Das _938064
245			_aEducational Research/ _cby Ajay Das
250			_a2nd rev.
260			_aNewdelhi: _bSwastik Publications, _c2017.
300			_a280p.
650			_aEducational Research _938065
650			_aEducation _938066
650			_aSocial sciences _938067
942			_cBK
999			_c70714 _d70714