Akbayeva D.N., Seilkhanova G.A., Bakirova B.S., Smagulova I.A., и Salkhay Ә.Қ. 2019. «STUDYING THE COMPOSITION OF COMPLEXES ON THE BASIS OF PALLADIUM(II), COPPER(II), IRON(III) CHLORIDES AND POLYVINYLPYRROLIDONE». Известия НАН РК. Серия химии и технологии, вып. 5 (октябрь):92-99. http://189185.vm7pq.group/chemistry-technology/article/view/1496.