Halim, M. E.; Khan, M. N.; Shaha, U.; Rahman, M. H.; Akhter, K.; Ahmed, S. M. 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. 2024, 59, 223-230.