[1] John Neumann Univ, Kecskemet, Hungary
[2] Univ Johannesburg, Coll Business & Econ, Johannesburg, South Africa
[3] Univ Kotli, Fac Management Sci, Dept Commerce, Kotli, Pakistan
[4] Univ Debrecen, Ihrig Karoly Doctoral Sch Management & Business, Debrecen, Hungary