Copper extraction from the sulphation-roasted copper technogen concentrate. Himi, him. tehnol. hùrèèlèngijn èrdèm šinžilgèènij bùtèèl [Internet]. 2022 Dec. 16 [cited 2026 Jun. 27];10(10):1-9. Available from: https://www.mongoliajol.info/index.php/BICCT/article/view/1483