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| 040 | _aMAIN | ||
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_aTyagi,P D _920175 |
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| 245 | 0 | _aJournal of scientific and industrial research | |
| 260 |
_aNew Delhi _bNISCAIR _c2010 |
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| 300 |
_a649-984 _b69(9-12) |
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