. . . . . "Electronic books" . . . . "The heart of marketing : love your customers and they will love you back"@en . . "The heart of marketing love your customers and they will love you back" . . . . . "BUSINESS & ECONOMICS / E-Commerce / Internet Marketing" . . "BUSINESS & ECONOMICS / Mail Order" . . "BUSINESS & ECONOMICS / Marketing / Multilevel" . . "BUSINESS & ECONOMICS / Marketing / Direct" . . . . "BUSINESS & ECONOMICS / Marketing / Telemarketing" . .