“Synthesis of Novel Pyrazole Derivatives by Vilsemeier Haack Reaction”, Int. J. Emerg. Trends Sci. Technol., vol. 4, no. 07, pp. 5337–5342, Jul. 2017, Accessed: Jun. 15, 2026. [Online]. Available: http://ijetst.in/index.php/ijetst/article/view/1183