000 00251nam a2200109Ia 4500
999 _c23129
_d23129
082 _a370.72 RES;
100 _aBawa, S.K./s
245 0 _aResearch in education
260 _aPatiala
_bPunjab University Press
_c1994
300 _axiv, 180p.
942 _cBK