000 00285nam a2200121Ia 4500
008 211105s9999 xx 000 0 und d
020 _aVYASA10596
100 _aBhattacharyya Dipak Kumar
245 0 _aResearch Methodology
250 _a\N
260 _bExcel books
_c\N
300 _a399p.
999 _c9679
_d9679