qizi, Akhtamova Maftuna Zaynitdin, and Rahimova Gulrukh Siddiqovna. “Application of Modern Spectrophotometers for Determining the Amount of Phosphorus (V) Anhydride in Phosphoric Compounds”. Middle European Scientific Bulletin 18 (November 26, 2021): 340-345. Accessed May 4, 2024. https://cejsr.academicjournal.io/index.php/journal/article/view/895.