KEATING, C. J. (1987). Bagaimana menghadapi orang sulit. Kanisius.
Chicago Style (17th ed.) CitationKEATING, Charles J. Bagaimana Menghadapi Orang Sulit. Kanisius, 1987.
MLA (8th ed.) CitationKEATING, Charles J. Bagaimana Menghadapi Orang Sulit. Kanisius, 1987.
Warning: These citations may not always be 100% accurate.