TURABOV, Nurmuxammat, et al. “DETERMINATION OF THE OPTIMUM CONDITIONS FOR THE REACTION OF COMPLEX FORMATION OF NICKEL(II) IONS WITH AZORUBINE”. «ACTA NUUz», vol. 3, no. 3.1, Aug. 2026, pp. 432-4, http://journals.nuu.uz/index.php/actanuuz/article/view/14135.