Khoirudin, Muhammad Mukhlis, Irman Hermadi, and Hari Agung Adrianto. “Temporal Healthcare Data Warehouse With SCD Type 2 for OLAPBased Executive Information Systems: A Galaxy Schema Approach”. Journal of Information Systems and Informatics 8, no. 4 (August 29, 2026): 4894–4912. Accessed September 19, 2026. https://journal-isi.org/index.php/isi/article/view/1651.