درجه‌بندی هتل‌ها (Persian Wikipedia)

Vine, P.A.L. (March 1981). "Hotel classification; art or science?". International Journal of Tourism Management. Elsevier Science Ltd. 2 (1): 18–29. doi:10.1016/0143-2516(81)90014-1. (Requires purchase of a document for $31.50)

eurochrie2010.nl

Hensens, Struwig & Dayan. "Guest-review criteria on TripAdvisor compared to conventional hotel-rating systems to assess hotel quality" (PDF). Eurochrie 2010. Archived from the original (PDF) on 10 July 2012. Retrieved 18 November 2012.

frenchkpi.com

"Hotel Rating System in France: Categories and Map - FrenchKPI". frenchkpi.com. 12 September 2014. Archived from the original on 20 March 2018. Retrieved 19 March 2018.

hotelsterne.ch

""History & development", hotelsterne.ch, accessed November 14, 2010, "In 1979, hotelleriesuisse (Swiss Hotel Association) introduced the hotel classification. This was the first and only worldwide private enterprise system of its kind. The system is internationally considered as exemplary, and has been repeatedly utilised as the basis for the development of a customised classification system (e.g. Germany, Austria)."". Hotelsterne.ch. 1 June 2012. Archived from the original on 30 August 2011. Retrieved 18 June 2012.

hotelsterne.de

"Eine Erfolgsgeschichte: Zehn Jahre Deutsche Hotelklassifizierung". hotelsterne.de. 27 July 2006. press release. Archived from the original on 14 December 2013. Retrieved 12 June 2012. Am 1. August 2006 feiert die Deutsche Hotelklassifizierung ihr zehnjähriges Bestehen." – "80 Prozent der Gäste geben an, dass die Sterne Hauptkriterium bei der Hotelauswahl sind, denn sie bieten Transparenz und Sicherheit

tourism.gov.in

"Hotels and Restaurants". Government of India, Ministry of Tourism. 29 May 2014. Archived from the original on 25 June 2014. Retrieved 29 May 2014.

tourismnewzealand.com

"Qualmark now 100% Tourism New Zealand owned". Tourism New Zealand. 8 September 2015. Archived from the original on 15 September 2015. Retrieved 12 September 2015.

web.archive.org

Hensens, Struwig & Dayan. "Guest-review criteria on TripAdvisor compared to conventional hotel-rating systems to assess hotel quality" (PDF). Eurochrie 2010. Archived from the original (PDF) on 10 July 2012. Retrieved 18 November 2012.
""History & development", hotelsterne.ch, accessed November 14, 2010, "In 1979, hotelleriesuisse (Swiss Hotel Association) introduced the hotel classification. This was the first and only worldwide private enterprise system of its kind. The system is internationally considered as exemplary, and has been repeatedly utilised as the basis for the development of a customised classification system (e.g. Germany, Austria)."". Hotelsterne.ch. 1 June 2012. Archived from the original on 30 August 2011. Retrieved 18 June 2012.
"Eine Erfolgsgeschichte: Zehn Jahre Deutsche Hotelklassifizierung". hotelsterne.de. 27 July 2006. press release. Archived from the original on 14 December 2013. Retrieved 12 June 2012. Am 1. August 2006 feiert die Deutsche Hotelklassifizierung ihr zehnjähriges Bestehen." – "80 Prozent der Gäste geben an, dass die Sterne Hauptkriterium bei der Hotelauswahl sind, denn sie bieten Transparenz und Sicherheit
"Hotel Rating System in France: Categories and Map - FrenchKPI". frenchkpi.com. 12 September 2014. Archived from the original on 20 March 2018. Retrieved 19 March 2018.
"Hotels and Restaurants". Government of India, Ministry of Tourism. 29 May 2014. Archived from the original on 25 June 2014. Retrieved 29 May 2014.
"Qualmark now 100% Tourism New Zealand owned". Tourism New Zealand. 8 September 2015. Archived from the original on 15 September 2015. Retrieved 12 September 2015.