Yimer, Ali Mohammed. 2012. “Synthesis, Characterization and Antimicrobial Study on Ni(II), Cu(II) and Zn(II) Complexes With N,N-Di (o-Hydroxybenzenoylmethylene) Ethylenediamine”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 6 (1):58-63. https://gssrr.org/index.php/JournalOfBasicAndApplied/article/view/1716.