Hasan1, Aurangzeb, et al. “Synthesis, Characterization and Antifungal Activity of Some New 5-Substituted 1,3,4-Oxadiazole-2-Thiols”. Asian Journal of Chemistry, vol. 23, no. 5, Jan. 2011, pp. 2007-10, https://asianpubs.org/index.php/ajchem/article/view/10358.