Sahu, K. 2010. “Binuclear Metal Chelates of 1,2,5,6-Tetraphenyl-3,4-Diaza-1,6-Dihydroxyimino- 2,4-Hexadiene With Pd(II) and Cu(II)”. Asian Journal of Chemistry 5 (4):826-30. https://asianpubs.org/index.php/ajchem/article/view/24938.