000 00610nam a2200193Ia 4500
005 20250508164845.0
008 008 250505s9999 xx 000 0 eng d
037 _aDissertations
040 _aFEDL
_beng
_cFEDL
041 _aeng
_2eng
084 _a540.7, SIT/DI
_qFEDL
100 _aSitalakshmi A R
_9779325
245 0 _aExploratory study of students' constructs of chemical bonding and atomic structure at senior secondary level
260 _c2007
300 _a83p.
546 _aM. Ed. Dissertation (Delhi University)
942 _cDIS
_h540.7, SIT/DI
999 _c1391612
_d1391612