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040 _cABC
100 _aGAMMA ,ERICH
245 _aDESIGN PATTERNS ELEMENTS OF REUSABLE OBJECT -ORIENTED SOFTWARE
260 _aNEW DELHI
_bPEARSON
_c2022
300 _a380
658 _aFACULTY OF COMPUTER SCIENCE
_bCOMPUTER SCIENCE
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