Salloom, Hussein T., Tagreed K. Hamad, and Fatema H. Rajab. “Laser-Induced Breakdown Spectroscopy for Determination of Toxic Metals in Fertilizers: Emphasis on Lead”. Iraqi Journal of Science 63, no. 6 (June 30, 2022): 2523–2531. Accessed January 3, 2026. https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/4633.