Zhantasov K.T., Shaimerdenova G.S., Dzhanmuldaeva Zh.K., Kadirbayeva A.A. и Mussirepova E.B. 2020. ON THE PRODUCTION OF PURIFIED DIAMMONIUM PHOSPHATE FROM EXTRACTION PHOSPHORIC ACID BASED ON OFF BALANCE ORES OF THE KARATAU BASIN . Academic Scientific Journal of Chemistry. 4 (сен. 2020), 44–50.