Kumar, Vikas, et al. “Antimicrobial Activities of Some Newly Synthesized Indolylthiazolylazetidinone and Indolylthiazolylthiazolidinone Derivatives ”. International Journal of Drug Design and Discovery, vol. 1, no. 3, Aug. 2010, pp. 239-51, https://ijddd.com/index.php/ijddd/article/view/31.