Authors
Manal Ghanem
Department of Mathematics, School of Science, The University of Jordan,, Amman, Jordan
Emad Abu Osba
Department of Mathematics, School of Science, The University of Jordan,, Amman, Jordan
© 2018 Manal Ghanem, Emad Abu Osba, published by Ovidius University of Constanta
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.