1. Department of Mathematical Sciences, Faculty of Science & Technology, Universiti Kebangsaan Malaysia (UKM), Bangi 43600, Selangor, Malaysia
2. Department of Mathematics, College of Computing, Informatics and Media, Universiti Teknologi MARA (UiTM), Melaka Branch, Jasin Campus, Merlimau 77300, Melaka, Malaysia
3. Department of Computational and Theoretical Sciences, Kulliyyah of Science, International Islamic University Malaysia, Kuantan 25200, Pahang, Malaysia
4. Kampung Oren, Ulu Tiram, Johor Bahru 81800, Johor, Malaysia