1. Department of Geography, University of Peshawar, Peshawar 25120, Pakistan
2. Department of Geography, Indiana University, Student Building 210, Bloomington, IN 47405, USA
3. Department of Urban and Regional Planning, University of Peshawar, Peshawar 25120, Pakistan
4. Department of Geography, Justus Leibig University Giessen, Senckenbergstraße 1, 35390 Gießen, Germany