Gaya APA

Michelli, J, A. (2009). The New Gold Standard : Layanan Bintang Lima The Ritz-Carlton Hotel Company . JAKARTA: PT Gramedia Pustaka Utama.

Gaya MLA

Michelli, Joseph, A.. "The New Gold Standard : Layanan Bintang Lima The Ritz-Carlton Hotel Company". JAKARTA: PT Gramedia Pustaka Utama, 2009. Text.