000 00395nam a22001577a 4500
999 _c575
_d575
003 OSt
005 20240801165735.0
008 180925b xxu||||| |||| 00| 0 eng d
020 _a8176484822
082 _223
_a370.7
_bKHA
100 _aKhan,S.
245 _aEducational Research.
260 _aNew Delhi :
_bA.P.H. Publishing Corporation,
_c2015.
300 _aviii,160p.
_c23 cm.
942 _2ddc
_cBK