| 000 | 00308nam a2200097Ia 4500 | ||
|---|---|---|---|
| 100 | _aChitra, L. | ||
| 245 | _aPreparation and testing of concept maps for teaching chemistry at higher secondary level / | ||
| 260 |
_bUniversity of Kerala , _c2012. |
||
| 856 | _uhttp://hdl.handle.net/10603/402532 | ||
| 942 | _cREF | ||
| 999 |
_c169925 _d169925 |
||