Sánchez Guzmán, J. R. “Market Investigation on the Possible Trends and the Probable Consequences for the Strategic Planning of Marketing in the First Decade of the New Millenium”. Anagramas Rumbos Y Sentidos De La Comunicación, Vol. 2, no. 3, 1, pp. 135-50, https://revistas.udem.edu.co/index.php/anagramas/article/view/1245.