Yatini, Erna Apriliani and Soetrisno (2005) “Penentuan Koefisien Daya Angkat Pesawat Terbang Layang Terhadap Gerakan Angin Vertikal”, Limits: Journal of Mathematics and Its Applications, 2(1), p. 9. vailable at: https://journal.its.ac.id/index.php/limits/article/view/5302 (ccessed: 6December2025).