B. Cabrejos, “Advertising, direct marketing, promotion and public relations in the marketing of industrial goods in Antioquia”, Rev. DyC. EAFIT, vol. 38, no. 126, pp. 36–46, June 2012, Accessed: Nov. 11, 2026. Available: https://publicaciones.eafit.edu.co/index.php/revista-universidad-eafit/article/view/945