Kamel Khalafallah, Ali. “Synthesis and Reactions of 3-Formyl-1-Phenyl-5-[2-Thiazolo) Monoazamethine] Pyrazole”. Asian Journal of Chemistry, vol. 8, no. 4, July 2012, pp. 751-6, https://asianpubs.org/index.php/ajchem/article/view/24185.