Kumar, D., A. Syamal, V. Pandey, and Mukesh Rani. “Studies on Polystyrene-Anchored Coordination Compounds of Divalent, Trivalent, Tetravalent and Hexavalent Metal Ions With the Schiff Base Obtained from the Condensation of 3-Formylsalicylic Acid and O-Hydroxyphenylurea”. Asian Journal of Chemistry 23, no. 11 (September 7, 2011): 5004–5008. Accessed August 25, 2024. https://asianpubs.org/index.php/ajchem/article/view/11030.