Login New user?   04-Information Sciences Letters An International Journal   ISL Home   Aim and Scope   For Reviewers   For Authors   Editorial Board   Publication Ethics   Processing Charges   Indexing   Submit an Article   Content   Forthcoming Papers   Subscription Author     Name : Sarah K. El-Din Address : Mathematics Department, Faculty of Science, Al-Azhar University Girls Branch, Nasr City, Cairo, Egypt\\ Mathematics Department,, College of Science and Arts, Qassim University, Al-Badaya 51951, Saudi Arabia Email : sarahgad2612.el@azhar.edu.eg Telephone :   Home   About us   News   Journals   Conferences Contact us Copyright naturalspublishing.com. All Rights Reserved