K. V. Jagannath and G. Krishnamurthy (2021) “Design, Synthesis, and Anti-Tubercular Studies of 10-(phenylsulfonyl)pyrimido[1,2-a]benzimidazol (10H) One Derivatives”, New Innovations in Chemistry and Biochemistry Vol. 3, pp. 66–75. doi: 10.9734/bpi/nicb/v3/13631D.