1. Agrokhimicheskie metody issledovaniya pochv (Agrochemical Methods of Soil Studies), Moscow: Nauka, 1975.
2. Amirgaliev, N.A., Heavy metals in the aquatic ecosystem of the Kazakhstan part of the Caspian Sea, Mater. Nauch.-prakt. konf. “Tyazhelye metally i radionuklidy v okruzhayushchei srede” (Mater. Sci.-Pract. Conf. “Heavy Metals and Radionuclides in the Environment”), Semei, 2012, vol. 1, pp. 381–387.
3. Beus, A.A., Grabovskaya, L.I., and Tikhonova, N.V., Geokhimiya okruzhayushchei sredy (Enviromental Geochemistry), Moscow: Nedra, 1976.
4. Vernadskii, V.I., Biosfera (Biosphere), Moscow: Noosfera, 2001.
5. GN 2.1.5.1315-03. Predel’no dopustimye kontsentratsii (PDK) khimicheskikh veshchestv v vode vodnykh ob”ektov khozyaistvenno-pit’evogo i kul’turno-bytovogo vodopol’zovaniya (GN 2.1.5.1315-03. Maximal Allowable Concentrations (MAC) of Chemicals in Water of Water Bodies Used for Domestic and Cultural Water Supply), Moscow, 2003.