1. Monhemius A. J.“Topics in Non-ferrous Extractive Metallurgy”R. Burkin , Blackwell Scientific Publication Oxford 1980 , pp. 104 – 130
2. Gordon A. R.,1977,“Advances in Extractive Metallurgy”London , pp.153–160
3. Steintveit G. , 1970 ,“World Symposium on the Mining and Metallurgy of Lead and Zinc”, C. H. Cotterill and J. M. Cigan , New York AIME , II , pp. 223 – 246
4. Improved leaching technologies in the electrolytic zinc industry