Purwayoga, Vega, Muhammad Al Husaini, and Hen Hen Lukmana. “Skyline Query Visualization for COVID-19 Health Workers Distribution”. Jurnal Teknik Informatika dan Sistem Informasi 9, no. 1 (April 29, 2023): 16 –. Accessed May 18, 2024. https://journal.maranatha.edu/index.php/jutisi/article/view/5624.