Qarni, Raisul, and Taufiq Mulyanto. “Study on the Use of Heliport As Landing and Take-off Sites for Urban Air Mobility”. ITB Graduate School Conference 4, no. 1 (January 20, 2025). Accessed October 26, 2025. https://gcs.itb.ac.id/proceeding-igsc/index.php/igsc/article/view/305.