Nagpal, M. K., K. K. Nagpaul, and Mihir K. Bose. “Fission Track Ages of Some Alkaline Rocks of India”. Journal of Geological Society of India 15, no. 3 (September 1, 1974): 306–313. Accessed September 20, 2024. https://geosocindia.com/index.php/jgsi/article/view/63213.