حاتم البلک, . (2021). The Role of customer engagement in improving human sigma: Applied study on Egyptian banking sector. test, 35(2), 1-20.
مصطفى حاتم البلک. "The Role of customer engagement in improving human sigma: Applied study on Egyptian banking sector". test, 35, 2, 2021, 1-20.
حاتم البلک, . (2021). 'The Role of customer engagement in improving human sigma: Applied study on Egyptian banking sector', test, 35(2), pp. 1-20.
حاتم البلک, . The Role of customer engagement in improving human sigma: Applied study on Egyptian banking sector. test, 2021; 35(2): 1-20.