Mirzaqulov, X., E. Eminov, and S. Yuzboyev. “INVESTIGATION OF THE PROCESS OF OBTAINING EXTRACTION PHOSPHORIC ACID FROM A MIXTURE OF PHOSPHORITES OF KARATAU AND CENTRAL KYZYLKUM”. Educational Research in Universal Sciences, vol. 2, no. 10 SPECIAL, Sept. 2023, pp. 109-15, http://erus.uz/index.php/er/article/view/3814.