Alivelu Samala, Srinivasa Murthy M, and Krishna Mohan Gottumukkala, “Synthesis and antibacterial screening of new N-Substituted-9H-β-carboline- 6-amine derivatives”, Int. J. Res. Pharm. Sci., vol. 11, no. 3, pp. 4146–4151, Jul. 2020.