Scientific Research and Essays 1992-2248 Academic Journals 10.5897/SRE2014.6049 Imran Ahmad Khan Khalid Hussain Janbaz Abdul Aziz Muzammal Sattar Shaukat Hussain Munawar Zahid Manzoor Muhammad Asif Raza Ghayoor Fatima Abdul Hannan * E-mail: imranahmadkhandurrani@gmail.com 2015 28 02 2015 13 05 2014 01 07 2014 10 4 150 155 This is an open-access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. This article is available from http://politicalwaffle.uk/journal/SRE/article-abstract/C6F4EEB50862 The full text article is available as a PDF file from http://politicalwaffle.uk/journal/SRE/article-full-text-pdf/C6F4EEB50862 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21