Duarah, B.P., Singh, W.I. and Deka, D.J. 2011. The Barail sandstones of Ukhrul area, Manipur, India: a study on provenance and tectonic environment based on petrographic, heavy mineral and geochemical data. Journal of Nepal Geological Society. 43, (Nov. 2011), 53–68. DOI:https://doi.org/10.3126/jngs.v43i0.24897.