Singh, A. K.
Pal, M. K.
Negi, A.
Mistri, K. Ch.
Funding for this research was provided by:
National Board for Higher Mathematics (NBHM/R.P.78/2015/Fresh/2017)
University Grants Commission (416141)
Article History
Received: 18 June 2017
Accepted: 26 September 2018
First Online: 6 October 2018