“Spectrophotometric Determination of Copper(II) using 2,2[O-Tolidine-4,4-bis azo]bis[4,5-diphenyl imidazole](MBBAI)”, Baghdad Sci.J, vol. 17, no. 1(Suppl.), p. 0287, Mar. 2020, doi: 10.21123/bsj.2020.17.1(Suppl.).0287.