LawalA., SuleimanN., and AbdulkarimS. “The SPECTROPHOTOMETRIC DETERMINATION OF TARTRAZINE IN SOME SELECTED BEVERAGES: A CASE STUDY OF KATSINA TOWN, NIGERIA ”. FUDMA JOURNAL OF SCIENCES, Vol. 4, no. 3, Oct. 2020, pp. 685 -89, https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/307.