Nair, N. G. K, K. Soman, M. Santosh, M. M. Arakelyants, and V. N. Golubyev. “K-Ar Ages of Three Granite Plutons from North Kerala”. Journal of Geological Society of India 26, no. 9 (September 1, 1985): 674–676. Accessed September 20, 2024. https://geosocindia.com/index.php/jgsi/article/view/65842.