1. Department of Chemistry, Faculty of Science, University of Agriculture, Faisalabad, Pakistan
2. Department of Chemistry, Faculty of Science, Tarbiat Modares University, Tehran, Iran
3. School of Architecture, Computing and Engineering, University of East London, EB 1.102 Docklands Campus, University Way, London, E16 2RD, UK
4. Executive Principal Office, Oxford Business College, 23-38 Hythe Bridge Street, Oxford, OX1 2EP, UK