Air Pilot's Manual Vol. 5: Radio Navigation & Instrument Flying
Never Get Lost - Interpretation of Radio Navigation
EASA Enroute Instrument Rating EIR/CBIR
Teaching Confidence in the Clouds
Radio Nav 1 - NDB Navaid and ADF Avionics
FAA Instrument Procedures Handbook
FAA Instrument Flying Handbook
The Instrument Flight Manual - Kershner
Pilot's Manual Volume 3: Instrument Flying
