Fawzy, M.M., R.M. Abdel-Rahman, and Z. El-Gendy. 2010. “Synthesis of Some New 3,4 4,6-Disubstituted- 1,2,4-Trianine-5-Ones Bearing a Pyrazoleo-Pyridazine Moiety ”. Asian Journal of Chemistry 4 (3):500-507. https://asianpubs.org/index.php/ajchem/article/view/25088.