N. H. Buttrus, “Synthesis and Characterization of Co+2,Ni+2,Cu+2 ,Zn+2 and Hg+2 Complexes With 1,1,2,2-Tetrakis (Sodium Thiolactate) Ethylene”, SJUOZ, vol. 1, no. 1, pp. 292–299, Jun. 2013, Accessed: Nov. 16, 2025. [Online]. Available: https://sjuoz.uoz.edu.krd/index.php/sjuoz/article/view/92