Volume 17, Issue 2, February– 2021

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Bhagya lakshmi Kothuru
Department of Mathematics, KKR&KSR Institute of Technology & Sciences Vinjanampadu, Guntur
Dr.V. Amarendra Babu
Department of Mathematics, Acharya Nagarjuna University, A.P, India.
M. Ankarao
Department of Mathematics (PG), J.K.C College, Guntur-6, A.P, India.