BHATTACHARYYA, Samit. Mineral Chemistry and Petrology of the Manganese Silicate Rocks of Vizianagaram Manganese Belt, Andhra Pradesh. Journal of Geological Society of India, [S. l.], v. 27, n. 2, p. 169–184, 1986. Disponível em: https://geosocindia.com/index.php/jgsi/article/view/65644. Acesso em: 20 sep. 2024.