1. Muhammad Sulaiman:
Department of Mathematics, Abdul Wali Khan University Mardan,KPK,Pakistan
2. Muhammad Sulaman:
Department of Mathematics, Statistics & Physics, Qatar University, Qatar.
3. Abdelwahed Hamdi:
Department of Mathematics, Statistics & Physics, Qatar University, Qatar
4. Zubair Hussain:
Department of Mathematics, Abdul Wali Khan University Mardan, KPK, Pakistan