[1] Univ Sharjah, Hlth Econ & Financing Grp, Sharjah, U Arab Emirates
[2] Univ Salford, Sch Sci Engn & Environm, Salford M5 4WT, England
[3] Rabdan Acad, Student Serv, Abu Dhabi, U Arab Emirates
[4] Northern Border Univ, Appl Coll, English Unit, Ar Ar 91431, Saudi Arabia
[5] Univ Pendidikan Sultan Idris, Fac Comp & Meta Technol, Tanjung Malim 35900, Malaysia