<div dir="ltr"><br clear="all"><div><br></div>-- <br><i style="font-family:&#39;times new roman&#39;,&#39;new york&#39;,times,serif;font-size:16px;background-color:rgb(255,255,255)">Muhammad Shafiq <br>Ph. D. Scholar<br>Department of Physics<br>
University of Malakand, Pakistan.<br>Cell: <font color="#0000bf">+92-3018046800</font></i>
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