A. H. Al-Syari, S. S. Hassan, and Z. Al-dulaimy, “Synthesis and Spectroscopic Study of Some New 1,2,4-Triazino[5,6-b]indole Derivatives”, TU. J. Nat. Appl. Sci. , vol. 2, no. 1, pp. 57–68, Jan. 2023.