1. Rare earth Investing news: (2022): https://investingnews.com/daily/resource-investing/critical-metals-investing/rare-earth-investing/rare-earth-reserves-country/
2. Keith R Long, Bradley S van Gosen, Nora K Foley, Daniel Cordier (2010): The Principal Rare Earth Elements Deposits of the United States, USGS Scientific Investigations Report 5220
3. Nash JT (2010): Volcanogenic uranium deposits: geology, geochemical processes, and criteria for resource assessment: U.S. Geological Survey Open-File Report 2010–1001, 110 p.
4. Goodell PJ ( 1985). Classification and model of uranium deposits in volcanic environments in International Atomic Energy Agency, Uranium deposits in volcanic rocks: International Atomic Energy Agency Panel Proceedings of a Technical Committee Meeting, El Paso Texas April 2–5, 1984, 1–17.
5. Bidwai R, Srinivasan S, Nanda LK, Atanu Banerjee, Yadav OP, Rai AK Parihar PS (2015): Anomalous rare earth abundances in Siwana Ring Complex, Barmer district, Western Rajasthan. Geological Survey of India Special Publication 101. Recent developments in Metallogeny and Mineral Exploration in Rajasthan, 163–176.