| The book has been written by consulting a number of standard textbooks and journals from the related field. In order to make the text more meaningful, several illustrations and photographs have been incorporated at appropriate places. |
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| author | A.K. Gangwar, Naveen Kumar & Kh. Sangeeta Devi |
|---|---|
| publisher | nipa |
| language | English |
| pages | 428 |
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