| Author Profile : |
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 | Author : | Upendra Kumar
| | Current Position : | | Assistant Professor , Department of Mathematics , Govt. Post Graduate College Obra,Sonebhadra , Uttar Pradesh. | | Education : | | - | | Short Profile : | | Upendra Kumar is working as Assistant Professor at Department of Mathematics in Govt. Post Graduate College Obra,Sonebhadra , Uttar Pradesh.
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