1. Anwar Shah, Public Sector Governance & Accountability Series, 2007, NW, Washington
2. Economic Survey of India ( volumes from 2008 to 13)
3. Infrastructure advisory by CRISIL India
4. Aarthik Samiksha (Set of 2 Volumes)
5. InfrastructureIndia.gov.in_Dept. of Economic Affairs, PPP cell, Infrastructure Division.
6. http://www.pppinindia.gov.in
7. Compendium of PPP Projects in Infrastructure published by Planning Commission (Govt. of India)
8. Report of CAG on Implementation of PPI Projects in NHAI (for the year ended March, 2013)
9. E - Library Stuff