Login New user?   Sohag Journal of Mathematics An International Journal   SJM Home   Submit an Article   Content   Forthcoming Papers   Subscription Author     Name : Rahmatullah Ibrahim Nuruddeen Address : Department of Mathematics, Federal University Dutse, P.M.B 7156, Dutse, Jigawa State, Nigeria. Email : rahmatullah.n@fud.edu.ng Telephone : +2348060975948   Home   About us   News   Journals   Conferences Contact us Copyright naturalspublishing.com. All Rights Reserved