Welham, Nicholas J, Jadambaa Temuujin, and Nader Setoudeh. “Leaching of a Mongolian Chalcopyrite Concentrate”. Mongolian Journal of Chemistry 19, no. 45 (December 28, 2018): 1–4. Accessed April 16, 2024. https://www.mongoliajol.info/index.php/MJC/article/view/1082.