000 00322nam a2200121Ia 4500
100 _aBhatt, B D & Sharma, S R
020 _a81-85475-52-0
942 _cBK
245 _aEducational technology
_bConcept and technique
260 _aKanishka publishing house, New Delhi
_c1992
082 _a371.3 Bha/Sha
300 _aviii,384p
999 _c62352
_d62352