Ehsan, M Q, M H Rashid, and S M Saiful Islam. 2003. “?PREPARATION, CHARACTERIZATION AND MOLECULAR MODELS OF THE COMPLEXES OF QUADRIDENTATE TRIPODAL LIGAND TREN [TREN = TRIS(2-AMINOETHYL)AMINE] WITH Ag(I), Cd(II), Hg(II), Zr(IV) AND U(VI)”. Biological Sciences - PJSIR 46 (5):317-22. https://v2.pjsir.org/index.php/biological-sciences/article/view/1658.