“Negative Ion Formation During Scattering of H-Atom from-Al (111) Thin Films: Using Perturbative Method”. University of Thi-Qar Journal of Science 4, no. 4 (July 10, 2014): 142–147. Accessed November 21, 2024. https://jsci.utq.edu.iq/index.php/main/article/view/683.