Dictionary of advertising, direct response marketing and sales promotionFrank William Jefkins · First published 1990Open the Tome
Secrets of Successful Direct Response MarketFrank William Jefkins · First published 1990Open the Tome
International dictionary of marketing and communicationFrank William Jefkins · First published 1987Open the Tome
Communication in industrialising countriesFrank William Jefkins, Frank Jefkins, Frank Okwu Ugboajah · First published 1986Open the Tome