Abdo Qahis
Malaysia
University Kebangsaan Malaysia
School of mathematical Sciences, Faculty of Science and Technology,University Kebangsaan Malaysia, 43600 UKM, Selangor Darul Ehsan, Malaysia
Mohd. Salmi Md. Noorani
Malaysia
University Kebangsaan Malaysia
School of mathematical Sciences, Faculty of Science and Technology, University Kebangsaan Malaysia, 43600 UKM, Selangor Darul Ehsan, Malaysia