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First Author:
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| Zahid Asghar |
| Quaid-i-Azam University, Islamabad |
| g.zahid@gmail.com |
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| Quaid-i-Azam University, Statistics |
| Islamabad, 44000, Pakistan |
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| 0092-300-9121940(Phone) |
| 0092-300-9121940(Fax) |
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Second Author:
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| Nighat Jahandad |
| Quaid-i-Azam University, Islamabad |
| nighatparveen@yahoo.com |
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