Abukenova, V.S., Zh.Zh. Blyalova, and M.Zh. Blyalova. 2018. “The Nura River Saprobity Degree Determination by Hydrobionts Species Composition”. Fundamental and Experimental Biology 91 (3):40-47. https://doi.org/10.31489/2018bmg3/40-47.