Sadiq M. Eidy and Mohammed R. Ahamad 2023. Synthesis and Characterization of Heterocyclic Derivatives Containing Five membraned rings from 2-mercapto-5-methyl-oxadiazole. Journal of Kufa for Chemical Sciences. 2, 9 (Aug. 2023), 98–114. DOI:https://doi.org/10.36329/jkcm/2022/v2.i9.13289.