Win, Yip-Foo, Emad Yousif, Ahmed Majeed, and Sie-Tiong Ha. 2011. “Synthesis, Characterization and in Vitro Antimicrobial Activity of Co(II), Cu(II), Zn(II), Cd(II) and Sn(II) Ions With {[5-(4-Bromophenyl)-1,3,4-Oxadiazol-2-yl]thio}acetic Acid”. Asian Journal of Chemistry 23 (11):5009-12. https://asianpubs.org/index.php/ajchem/article/view/11064.