Panthi, Krishna Kantha, and Chhatra Bahadur Basnet. 2016. “Review on the Major Failure Cases of Unlined Pressure Shafts/Tunnels of Norwegian Hydropower Projects”. Hydro Nepal: Journal of Water, Energy and Environment 18 (March):6-15. https://doi.org/10.3126/hn.v18i0.14637.