Ehsan, M. Q. (2000) “PREPARATION AND CHARACTERISATION OF FIRST Row TRANSITION METAL COMPLEXES WITH QUADRIDENTATE TRIPODAL LIGAND TREN [TREN=TRIS (2-AMINOETHYL) AMINE] ?”, Biological Sciences - PJSIR, 43(5), pp. 271–274. Available at: http://www.biostaging.pjsir.org/index.php/biological-sciences/article/view/2048 (Accessed: 8 June 2025).