000 00300nam a2200109Ia 4500
008 240109s9999 xx 000 0 und d
041 _aeng
100 _aWhitten J.L and Bentley .L
245 _aSystem Analysis & Design Methods
260 _bGalgotia Pub Pvt Ltd , NewDelhi
650 _aManagement
999 _c1022194
_d1022194