“Spectrophotometric Determination of Copper(II) Using 2,2[O-Tolidine-4,4-Bis azo]bis[4,5-Diphenyl imidazole](MBBAI)”. Baghdad Science Journal, vol. 17, no. 1(Suppl.), Mar. 2020, p. 0287, https://doi.org/10.21123/bsj.2020.17.1(Suppl.).0287.