1. Daukaev S.Zh. Mineral resources of Kazakhstan—Possibility of scientific and technical progress. 1st International Conference on Problems of Complex Processing of Raw Material of Kazakhstan. Almaty. P. 11, 2003.
2. Zharmenov A.A.Republican State Enterprise -National Center on Complex Treatment of Mineral Raw Materials of RK—Into the future with optimism. 1st International Conference on Problems of Complex Processing of Raw Material of Kazakhstan. Almaty, P. 4, 2003.
3. Technogenic Deposits in Russia: Precious Metals Stocks and Prospects of Their Recovery;Anna Boduen;Journal of Materials Science Research,2014
4. Processing of technogenic lead-containing intermediates using complexing agent solutions;V. A. Sergeev;Metallurgist,2013
5. A.K. Koizhanova, L.L. Osipovskaya, M.B. Erdenova, Study of precious metals extraction recovery from technogenic wastes. 12th International Multidisciplinary Scientific Geo Conference—SGEM2012, June, Vol. 1, pp 843–846, 2012.