Sinha-Roy, S., and G. R. Ravindra Kumar. “Fuchsite - Bearing Quartzite in the Sargur Equivalent Rocks of North Kerala”. Journal of Geological Society of India, vol. 25, no. 2, Feb. 1984, pp. 120-2, https://geosocindia.com/index.php/jgsi/article/view/65393.