MULDAKHMETOV, Z.; GAZALIEV, A.; ZHAKINA, A.; VASILETS , E.; ARNT, O. SYNTHESIS AND STUDY OF THE STRUCTURE OF THE N-DERIVATIVE OF HUMIC ACIDS BASED ON COAL MINING WASTE. Известия НАН РК. Серия химии и технологии, [S. l.], n. 3, p. 123–134, 2022. DOI: 10.32014/2518-1491.123. Disponível em: https://journals.nauka-nanrk.kz/chemistry-technology/article/view/4243. Acesso em: 21 ноя. 2024.