References
- Ministry of Defence, India. https://www.pib.gov.in/PressReleasePage.aspx?PRID=1796961.
- Pathak M, Saini SK. J Eng Geology, 2019;June & December. http://joegindia.com/PAPER/volume-44/PAPER-04-M-PATHAK.pdf
- Border Roads Organization: Learning from Experience—The Atal Tunnel, Rohtang. www.marvels.bro.gov.in.