1. Al-Jayyousi O. R. (2012), Islam and Sustainable Development: New Worldviews, Farnham: Gower Publishing Limited, pp. 202.
2. Drinking Water and Public Health in an Era of Aging Distribution Infrastructure
3. ASCE (2016), Failure to Act: The Impact of Infrastructure Investment on America’s Economic Future, American Society of Civil Engineers: Reston, Virginia
4. Brundtland Commission (1987). Our Common Future - Report of the World Commission on Environment and Development. Oxford University Press. Retrieved from https://sustainabledevelopment.un.org/content/documents/5987our-common-future.pdf
5. Review of studies on the public–private partnerships (PPP) for infrastructure projects