Chew, Sally
Business etiquette : an essential guide for executives / Sally Chew
Times Books International, 1995
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Hutabarat, Hermin
Etiket
Gunung Mulia, 1989
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Post, Peggy
Emily Posts Etiquette
HarperCollins Publishers, 2004
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Hoedojo Hoed
Serba-serbi keprotokolan / Hoedojo Hoed
Balai Pustaka, 1994
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Mayeroff, Milton
Seni memperhatikan
Gramedia Pustaka Utama, 1993
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