M. Ichwan Ridhani et al. 2018. RANCANGAN MODIFIKASI ALAT PENARIK BETA SISTEM PROPELLER HARTZELL TIPE HC-E4N-3G SERIES DI BALAI BESAR KALIBRASI FASILITAS PENERBANGAN. Langit Biru: Jurnal Ilmiah Aviasi. 11, 1 (Feb. 2018), 42–51. DOI:https://doi.org/10.54147/langitbiru.v11i1.201.