Холтура МИРЗАКУЛОВ, Нодир ЭРКИНОВ, and Назокат САИДМАХМУДОВА Руслан ЁРБОБОЕВ. “INVESTIGATION OF THE PROCESS FOR PRODUCING NITROGEN – PHOSPHORUS - CALCIUM FERTILIZERS FROM KYZYLKUM WASHED AND CALCINED PHOSPHATE CONCENTRATE USING NITRIC ACID AND AMMONIA ”. «ACTA NUUz», vol. 3, no. 3.1, Mar. 2026, pp. 483-6, doi:10.69617/nuuz.v3i3.1.11453.