Michelli, J. A., & Martha Widjaja. (2009). The New gold standard: Layanan bintang lima The Ritz-Carlton Hotel Company. Jakarta: Gramedia Pustaka Utama.
Chicago Style CitationMichelli, Joseph A., and Martha Widjaja. The New Gold Standard: Layanan Bintang Lima The Ritz-Carlton Hotel Company. Jakarta: Gramedia Pustaka Utama, 2009.
MLA CitationMichelli, Joseph A., and Martha Widjaja. The New Gold Standard: Layanan Bintang Lima The Ritz-Carlton Hotel Company. Jakarta: Gramedia Pustaka Utama, 2009.
Warning: These citations may not always be 100% accurate.