Mohammad Saeed, A., أمل, T. Saeed Alghabsha, and ثابت. “Spectrophotometric Determination of Arginine and Lysine by Alizarin Red Sulphonate in Aqueous Solution”. Journal of Education and Science (JES), vol. 26, no. 1, Mar. 2013, pp. 1-17, doi:10.33899/edusj.2013.89217.