Ganiev Pirnazar, Namazov Shafoat, Usanboyev Najimuddin,. “Humic Superphosphates Based On Phosphorites And Oxidized Local Coal”. International Journal of Advanced Science and Technology 29, no. 9s (May 9, 2020): 2042 - 2052. Accessed July 21, 2026. http://sersc.org/journals/index.php/IJAST/article/view/14498.