Mukherjee, Ananda Deb, and Ranen Sen. “Pyrrhotite Alteration-A Study on Norwegian and Indian Sulphide Ores”. Journal of Geological Society of India 23, no. 4 (April 1, 1982): 196–198. Accessed June 30, 2024. https://geosocindia.com/index.php/jgsi/article/view/65066.