Institution: | 1. General Studies Department, Yanbu Industrial College, P.O. Box 30436, Yanbu Industrial City, Saudi Arabia 2. Dep. of Physics, Mutah University, Karak, Jordan 3. Dep. of Physics, Tabuk University, P.O. Box 741, Tabuk, 71491, Saudi Arabia 4. Dep. of Physics, Jordan University, Amman, 11942, Jordan
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