Joshi, P.C., and R. Rautela. “Synthesis and Antifungal Activity of Some Bis-Heterocycles Derived from Hydroquinone, Part-I ”. Asian Journal of Chemistry, vol. 10, no. 4, Mar. 2010, pp. 871-3, https://asianpubs.org/index.php/ajchem/article/view/23740.