Rosziati Ibrahim, Norfaradilla Wahid, Norhanifah Murli, and Hanayanti Hafit. System Analysis and Design Using Unified Modeling (UML) and Data Flow Diagram (DFD). Penerbit UTHM, 2026. Accessed April 7, 2026. https://publisher.uthm.edu.my/omp/index.php/penerbituthm/catalog/book/537.