DEVRYE, C. (1997). Good service is good business 7 strategi sederhana menuju sukses. Gramedia.
Chicago Style (17th ed.) CitationDEVRYE, Catharine. Good Service Is Good Business 7 Strategi Sederhana Menuju Sukses. Gramedia, 1997.
MLA (8th ed.) CitationDEVRYE, Catharine. Good Service Is Good Business 7 Strategi Sederhana Menuju Sukses. Gramedia, 1997.
Warning: These citations may not always be 100% accurate.