Zhai, Qing-Zhou. “Colour Reaction of P-Acetylchlorophosphonazo With Strontium(II) and Analytical Application”. Asian Journal of Chemistry 25, no. 1 (August 16, 2012): 556–558. Accessed February 21, 2026. https://asianpubs.org/index.php/ajchem/article/view/25_1_115.