RADHIKA, U. P.; SANTOSH, M.; WADA, H. Graphite Occurrences in Southern Kerala: Characteristics and Genesis. Journal of Geological Society of India, [S. l.], v. 45, n. 6, p. 653–666, 1995. Disponível em: https://geosocindia.com/index.php/jgsi/article/view/68098. Acesso em: 20 sep. 2024.