Muhafiz, Muhammad Arju, and Fajri Ashfi Rayhan. “Performance Analysis of a Contra-Rotating Propeller With a Toroidal Blade Model”. Applied Science and Technology on Naval Engineering 4, no. 1 (February 11, 2026): 19–25. Accessed September 25, 2026. https://ejournal.upnvj.ac.id/astne/article/view/13475.