Singh, P., A. Srivastava, A. P. Mishra, and R. Mehtab. “Cyclization Reactions for Synthesis of Benzthiazole- A Review”. Journal of Drug Discovery and Development ( ISSN:2581-6861), vol. 1, no. 1, Oct. 2018, pp. 4-12, https://medicaljournalshouse.com/index.php/JDrug-Discovery-Development/article/view/48.