1. Department of Mathematics Abdul Wali Khan University Mardan Khyber Pakhtunkhwa Pakistan
2. Department of Mathematics College of Arts and Sciences Wadi Aldawaser, 11991, Prince Sattam bin Abdulaziz University Saudi Arabia
3. Future Technology Research Center National Yunlin University of Science and Technology Yunlin Taiwan R.O.C
4. Department of Mathematics COMSATS University Islamabad Attock Pakistan