2022. Synthesis and Characterization Mixed Ligands of Phenylalanine and Tributylphosphine Complexes with Zn(II),Cd(II) and Hg(II) Ions . Journal of the College of Basic Education. 19, 79 (Dec. 2022), 841 = 847. DOI:https://doi.org/10.35950/cbej.v19i79.7403.