Mohammed Salih Hussien, Mumtaz, and Ismail Th. T. Yahya. “Calculation of The Electronic Energy Band Structure of GaAs Crystal Using The Semiempirical Tight Binding Method”. Journal of Education and Science (JES) 30, no. 4 (September 1, 2021): 1–14. Accessed August 6, 2025. https://ojs.uomosul.edu.iq/index.php/edusj/article/view/24074.