| Particular (3) |
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Author Names : *Maina, M. and **Medugu, D. W. *Department of Science Laboratory Technology, Ramat Polytechnic, Maid |
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Author Names : Sangam Kumar (P. I., U. G. C. Project) P. G. Department of Physics, L. S. College, B. R. A. Bihar |
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Author Names : Dr. Bablu Roy |

