Joshi, H.D., et al. “ Studies on 4-Thiazolidinones-Part I: Synthesis and Antimicrobial Activity of 1,4 Bis (2´ -Aryl-5´ -Methyl Carboxymethyl-4´ -Thiazolidinon-3&Acute; -Ylamino) Phthalazines ”. Asian Journal of Chemistry, vol. 4, no. 1, Mar. 2010, pp. 93-98, https://asianpubs.org/index.php/ajchem/article/view/25006.