Zulfiu, Arben. “Modeling of the Electronic Index With UML Diagrams As a Component of E-Learning”. ANGLISTICUM. Journal of the Association-Institute for English Language and American Studies 4, no. 9 (December 14, 2016): 8–13. Accessed October 5, 2026. https://anglisticum.ielas.org/index.php/IJLLIS/article/view/1195.