Gupta, M.M., S. Raman, and S.N. Srivastava. 2016. “Synthesis of 1,3-Dihydro-5-Substituted-3-[[4-[1-(p-Sulphamylphenylimino) Ethyl] Phenyl] Imino]-2H-Indol-2-Ones and Their in Vitro Antibacterial Screening”. Asian Journal of Chemistry 16 (2):779-83. https://asianpubs.org/index.php/ajchem/article/view/14512.