Janardhan, A. S., and Ph. Vidal. “Rb-Sr Dating of the Gundlupet Gneiss Around Gundlupet, Southern Karnataka”. Journal of Geological Society of India, vol. 23, no. 11, Nov. 1982, pp. 578-80, https://geosocindia.com/index.php/jgsi/article/view/65147.