“Investigation of Dorsal Fin Effects on the Aerodynamic Performance of Inverted-V Empennage VTOL Unmanned Aerial Vehicle”. Machine : Jurnal Teknik Mesin 11, no. 2 (October 29, 2025): 127–134. Accessed April 14, 2026. https://journal.ubb.ac.id/index.php/machine/article/view/6828.