Kairbekov Zhaksyntay Kairbekovich, Anatoly Malоletnev, Jeldybaeva Indira Mukhametkerimovna, и Abilmazhinova Didar Zamanbekovna. «DATA ON ANTIOXIDANT ACTIVITY OF HUMIC SUBSTANCES OF LOW-MINERALIZED SLUDGE SULPHIDE MUD (PELOIDS) AND THEIR CLASSIFICATION». Academic Scientific Journal of Chemistry, no. 3 (июнь 5, 2019): 32–37. просмотрено декабрь 5, 2025. http://89.250.84.46/chemistry-technology/article/view/1298.