1. Indian solutions to suburban rail transport;R C Acharya;Japan Railway & Transport Review,1997
2. Relay network design in freight transportation systems;T H Ali;Transportation Research Part E: Logistics and Transportation Review,2002
3. Evaluating a corporate Strategy-A Case Study of L�nsf�rs�kringar;H Andersson;Swedish University of Agricultural Sciences,2012
4. The SAGE Encyclopedia of Communication Research Methods