[1] Justyna Zywiolek Czestochowa Univ Technol, Fac Management, PL-42200 Czestochowa, Poland
[2] Ovidius Univ Constanta, Fac Med, Dept Management, Constanta 900527, Romania
[3] Athenaeum Univ Bucharest, Dept Management, Bucharest 020223, Romania
[4] Istanbul Sabahattin Zaim Univ, Dept Business Adm, TR-34303 Istanbul, Turkey
[5] Govt Coll Management Sci, Higher Educ Dept, Mansehra 23100, Pakistan