1. Denisov S.A., Investigation of the process and development of technology for the extraction of nickel compounds from spent catalysts: Diss … cand. tech. Sciences: Lower Novgorod, 173 (2000)
2. Trends and prospects of the Russian economy in 1997, Institute for the Perspectives of Economic Restructuring, 18 (1997)
3. Farmanov B.I., Tavashov Sh.Kh., Tabiy gazga birlamchi ishlov berish reformers katalizatorlari, Uzbekiston Milliy Universiteti Xabarlari, 3/2/1, 247–249 (2021)