Author = W. F. El-Metwally
| Number of Articles: 2 | ||
| 1 | Utilization Sonic Waves for Birds Controlling in Crops Field | |
| Volume 12, Issue 12, December 2021, Page 919-927 | ||
| A. R. Hamed; W. F. El-Metwally; M. E. El-Iraqi | ||
| 2 | Effect of Frequently Using Workshop Tools on Worker's Hand Arm Vibration and Safety | |
| Volume 9, Issue 12, December 2018, Page 799-807 | ||
| A. Hamed; W. El-Metwally; I. Sayed; M. El-Iraqi | ||
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