Холтура МИРЗАКУЛОВ, Нодир ЭРКИНОВ, and Назокат САИДМАХМУДОВА Руслан ЁРБОБОЕВ. 2026. “INVESTIGATION OF THE PROCESS FOR PRODUCING NITROGEN – PHOSPHORUS - CALCIUM FERTILIZERS FROM KYZYLKUM WASHED AND CALCINED PHOSPHATE CONCENTRATE USING NITRIC ACID AND AMMONIA ”. «ACTA NUUz» 3 (3.1):483-86. http://journals.nuu.uz/index.php/actanuuz/article/view/11453.