1. Global Aviation Industry High‐Level Group(2019).Aviation Benefits Report 2019 Airport Council International (ACI) Civil Air Navigation Services Organisation (CANSO) International Air Transport Association (IATA) International Civil Aviation Organisation (ICAO) and International Coordinating Council of Aerospace Industries Association (ICCAIA).
2. ICAO2019 Annual Report of the Council to the Assembly report n. International Civil Aviation Organization (ICAO).
3. Transport impacts on atmosphere and climate: Aviation;Lee D.S.;Atmospheric Environment,2010
4. 2023 International Civil Aviation Organization (ICAO) Economic Development ‐ Air Transport Bureau Montreal QC Canada Effects of Novel Coronavirus (COVID‐19) on Civil Aviation: Economic Impact Analysis