ٍSaeed Alghabsha Thabit, ثابت, Amal Mohammad Saeed, and أمل. 2013. “Spectrophotometric Determination of L-Arginine and Lysine Using a Red Lysarine Reagent S In Aqueous Solution”. Journal of Education and Science (JES) 26 (1):92-102. https://doi.org/10.33899/edusj.2013.162846.