[1] Univ Tun Hussein Onn Malaysia, Fac Appl Sci & Technol, Dept Math & Stat, Pagoh 84600, Muar, Malaysia
[2] Al Mustaqbal Univ Coll, Business Adm Dept, Babylon 51002, Iraq
[3] Islamic Univ, Coll Tech Engn, Refrigerat & Air Conditioning Tech Engn Dept, Najaf 54001, Iraq
[4] Univ Tun Hussein Onn Malaysia, Ctr Diploma Studies, Pagoh 84600, Muar, Malaysia
[5] ANNA Syst LLC, 9 Maya St,Bldg 7B,Bldg 2 Off 10-141707, Moscow 141980, Russia