7Szalavetz, A. , 2003, Tertiarization of Manufacturing Industry in the New Economy : Experiences in Hungarian Companies, Hungarian Academy of Sciences Working Papers, 134 : 1-12.
8Dennis, M.J. and Kambil, A. , 2003, "Service Management : Building Profits after the Sale", Supply Chain Management Review, January-February, pp42-48.
9Riddle, 1986,Service-led Growth: the Role of the Service Sector in the World Development, Praeger, New York.