000 00569nam a2200205Ia 4500
005 20250508163950.0
008 008 250505s9999 xx 000 0 hin d
037 _aTextBook
040 _aFEDL
_beng
_cFEDL
041 _ahin
_2hin
084 _a371.39, MAN/R
_qFEDL
100 _aMangal S K
245 0 _aSheishik thakniki (Educational technology)
260 _aNew Delhi, India
_bArya Book Depot
_c1998
300 _a270p.
365 _aINR
_b600
700 _a Mangal Subhra
_9776865
942 _cTB
_h371.39, MAN/R
999 _c1386329
_d1386329