, P. R., & , T. H. H. (2011). BLUE OCEAN STRATEGY FORMULATION IN HOTEL INDUSTRY: The Case of Grage Ramayana Hotel. [Yogyakarta] : Universitas Gadjah Mada.
استشهاد بنمط شيكاغو, Peter Ryan, و Tarsisius Hani Handoko. BLUE OCEAN STRATEGY FORMULATION IN HOTEL INDUSTRY: The Case of Grage Ramayana Hotel. [Yogyakarta] : Universitas Gadjah Mada, 2011.
MLA استشهاد, Peter Ryan, و Tarsisius Hani Handoko. BLUE OCEAN STRATEGY FORMULATION IN HOTEL INDUSTRY: The Case of Grage Ramayana Hotel. [Yogyakarta] : Universitas Gadjah Mada, 2011.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.