000 00504nam a2200181Ia 4500
005 20250508164336.0
008 008 250505s9999 xx 000 0 hin d
020 _a81-7450-706-X
037 _aReference
040 _aFEDL
_beng
_cFEDL
041 _ahin
_2hin
084 _a500, NCE
_qFEDL
245 0 _aVigyan
260 _aNew Delhi, India
_bNational Council of Educational Research and Training
_c2007
300 _axii,247p.
942 _cREF
_h500, NCE
999 _c1388593
_d1388593