Atmadi, Sulistyo, and Ahmad Jamaludin Fitroh. “ANALISIS RADIUS AMAN AKIBAT KEGAGALAN STRUKTUR SUDU SKEA 50 KW PADA SAAT BEROPERASI”. Indonesian Journal of Aerospace, vol. 8, no. 1 Juni, Dec. 2010, pp. 57-63, https://ejournal.brin.go.id/ijoa/article/view/12592.