Ali Hameed, R.M. 2009. Synthesis and biological activity study of some novel Tri-Schiff’s basses derived from 6-aminopenicillanic acid and Tri-amide containing three 1,3,4-thiadiazole units. Al Mustansiriyah Journal of Pharmaceutical Sciences. 6, 1 (Jun. 2009), 56–74. DOI:https://doi.org/10.32947/ajps.v6i1.358.