Kotler,Philip. Marketing for hospilatality and tourism. Perarson Eduacation.
Lua i Stíl Chicago (17ú heag.)Kotler,Philip. Marketing for Hospilatality and Tourism. Mumbai: Perarson Eduacation.
Lua MLA (9ú heag.)Kotler,Philip. Marketing for Hospilatality and Tourism. Perarson Eduacation.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.