M. E. Halim, M. N. Khan, U. Shaha, M. H. Rahman, K. Akhter, and S. M. Ahmed, “Spectral correlation of synthesized ethyl-4-(subs. phenyl)-6-methyl-2-oxo (or thio)-1, 2, 3, 4-tetrahydropyrimidine-5-carboxylate”, Bangladesh J. Sci. Ind. Res., vol. 59, no. 4, pp. 223–230, Dec. 2024.