albushaikhali, Z.H. falih and Zainab Abedumuttaleb Hammood 2024. Study of complexation behavior for Cobalt(II) with a new ligand derived from pA benzoic acid to estimate Co2+content in vitB12. Journal of Kufa for Chemical Sciences. 3, 3 (Nov. 2024), 240–254. DOI:https://doi.org/10.36329/jkcm/2024/v3.i3.15868.