Author = مصطفى حاتم البلک
| Number of Articles: 2 | ||
| 1 | The Role of customer engagement in improving human sigma: Applied study on Egyptian banking sector | |
| Volume 35, Issue 2, June 2021, Page 1-20 | ||
| مصطفى حاتم البلک | ||
| 2 | The role of employee engagement in improving Human sigma: Applied study on Egyptian banking sector | |
| Volume 35, Issue 2, June 2021, Page 41-62 | ||
| مصطفى حاتم البلک | ||
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