Sriramadas, A., and A. T. Rao. “Charnockites of Visakhapatnam, Andhra Pradesh”. Journal of Geological Society of India 20, no. 10 (October 1, 1979): 512–517. Accessed June 30, 2024. https://geosocindia.com/index.php/jgsi/article/view/64626.