About this article
Published Online: Dec 07, 2018
Page range: 149 - 163
Received: Jan 31, 2017
Accepted: Jul 22, 2018
DOI: https://doi.org/10.2478/awutm-2018-0010
Keywords
© 2018 Rajesh Kumar, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.
Kumar, Rajesh
Department of Mathematics, Pachhunga University CollegeMizoram, India