1. ASEAN Transport Cooperation Framework Plan,1999
2. Bowen, J., 1997. The Asia Pacific Airline Industry: Prospects for Multilateral Liberalization. In: Findlay, C., Chia Lin, S., Singh, K (Eds.), 1997. Asia Pacific Air Transport: Challenges and Policy Reforms. Institute of South East Asian Studies, Singapore.
3. The Single European Aviation Market: The First Five Years,1998
4. The Airline Business in The 21st Century;Doganis,2001
5. Findlay, C., Forsyth, P., 1990. ASEAN Interests in Air Transport Services in the Uruguay Round. in: UNCTAD/UNDP, Services in Asia and the Pacific: Selected Papers, vol. 1. United Nations, New York.