“Synthesis and Characterization of Some New Heterocyclic Compounds (Thiazolidine, Tetrazole And Azetidinone) from Schiff Bases Contain 1,4-Dihydropyridine”. 2026. College of Basic Education Research Journal 22 (1): 188-208. https://doi.org/10.33899/berj.2026.Vol22.Iss1.61913.