Alamdari., F. (2002). Regional development in airlines and travel agents relationship. Journal of Air Transport Management. Vol. 8,p:339-348.
Chan, D. (2000a).The story of Singapore Airlines and the Singapore Girl. The journal of Management Development. Vol. 19, No. 6; page: 456-472.
Chan, D. (2000b). Beyond Singapore girl: Grand and product/service differentiation strategies in the new millennium. The journal of Management Development. Vol. 19, No. 6, p: 515-542.
Doganis, R. (2006). The Airline Business. Second ed. Routledge: Abingdon.