Buku PEMASARAN;The NEW RULES of MARKETING & PR, WORD OF MOUTH MARKETING, KONSEP PEMASARAN, JADI SALESMAN KAYA, THE ZERO TURNOVER SAKES FORCE, SUCCSSSFUL MARKETING, MASTER PEMASARAN, SALES HANDBOOK IDE PENJUALAN TERHEBAT, PARADOX MARKETING,....baca Variasi