Institution: | 1. Department of Mathematics, B.B. College, Asansol, 713303, India 4. Department of Mathematics, Siksha Bhavana, Visva Bharati University, Santiniketan, 731235, India 2. Department of Mathematics, Bankura Christian College, Bankura, India 3. Kshetia High School, Burdwan, WB, India
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