SUTHAKARAN, R., et al. “Synthesis, Antiinflammatory, Antioxidant and Antibacterial Activities of 7-Methoxy Benzofuran Pyrazoline Derivatives”. Asian Journal of Chemistry, vol. 19, no. 5, Mar. 2010, pp. 3353-62, https://asianpubs.org/index.php/ajchem/article/view/13211.