“Density Functional Theory Study of Molecular Structure, Electronic Properties, UV–Vis Spectra on coumarin102”. Baghdad Science Journal 13, no. 2.2NCC (June 5, 2016): 0143. Accessed June 18, 2025. https://bsj-ojs.uobaghdad.edu.iq/index.php/BSJ/article/view/2760.