Akbayeva, L., Pangaliyev, E., Mamytova, N., Kobetayeva, N. and Kyzdarbekova, G. 2023. Hydroecological indicators of Lake Bolshoy Sarykol, Karaganda region. BULLETIN of the L.N. Gumilyov Eurasian National University. BIOSCIENCE Series. 145, 4 (Dec. 2023), 120–132.