Johnson, D. (1987). Intimidasi positif: Tehnik meningkatkan target penjualan. Dahara Prize.
Chicago Style (17th ed.) CitationJohnson, Dave. Intimidasi Positif: Tehnik Meningkatkan Target Penjualan. Dahara Prize, 1987.
MLA (8th ed.) CitationJohnson, Dave. Intimidasi Positif: Tehnik Meningkatkan Target Penjualan. Dahara Prize, 1987.
Warning: These citations may not always be 100% accurate.