1. Department of Mathematics, Faculty of Science, Al-Baha University, Al-Baha, Saudi Arabia; ofalghamdi@bu.edu.sa
2. Department of Mathematics, Faculty of Sciences, Al al-Bayt University, Mafraq 25113, Jordan; omarimutah1@yahoo.com
3. Department of Mathematics, University College of Umluj, University of Tabuk, Tabuk 48322, Saudi Arabia; m_halqahtani@ut.edu.sa