00254nam a2200097Ia 450000500170000000800410001708200180005810000150007624500320009126000330012320260205060147.0260111s9999||||xx |||||||||||||| ||und||  a005.74  B469S  aBhatia, P. 0aSimplified approach to DBMS  aLudhianabKalyani pub.c2009