PRAKASH, D., B. KUMAR, and O.P. GUPTA. 2010. “Alkali Metal Complexes: Mixed Ligand Complexes of Some Organic Compounds of Alkali Metals With 4-Isonitroso-1-Phenyl-3-Methyl-5-Pyrazolone”. Asian Journal of Chemistry 6 (2):355-58. https://asianpubs.org/index.php/ajchem/article/view/24553.