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| 020 | _a9788121902816 | ||
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_2CC _aB288 |
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| 100 |
_aGUPTA(Prem Kumar) & HIRA, D S _919348 |
||
| 245 | _aOperations Research | ||
| 250 | _aEd.7 | ||
| 260 |
_bS Chand and Co., _c2023, _aNew Delhi. |
||
| 300 | _a1498p. | ||
| 942 |
_cBK _2CC |
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| 999 |
_c756930 _d756930 |
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