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• Holmberg, Borje. On the Status of Distance Education in the World in the 1980's-A Premlnary Report on the Fern'Unlveraitiit Comparative Study. Hagen: Fernl.Iniversitat, 1985.
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• M'mpower Survey of the Hotel and Tourism Industry, Volume 1- Current Manpower Resources. A project of the Ministry of Tourism with the technical co-operation of the United Nations Development Program (UNDP) and the International Labour Organization (1LO), (Turkey, 1989).
• IVkmpDwer Survey of The Hotel and Tourism Industry. Volume 2- Projections of ],Vlanpower Requirements. A project of the Ministry of Tourism with the technical co operation of the United Nations Development Program elINDP) and the Intcrnational Labour Organization [ILO), (Turkey, 1989).
• Ozdil, Ilhan, 'I'iirk Egitim Slstemtnde Uzaktan EgWmin Yeri. Eskisehir: Anadolu Universitesi AOF Yayim, 1986.
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