Herrera Ruiz, J.C., Tabares Penagos, A. and Vélez Rojas, O.A. (2012) “The English language as a vector of the free market model”, Ciencias Sociales y Educación, 1(2), pp. 39–53. Available at: https://revistas.udem.edu.co/index.php/Ciencias_Sociales/article/view/817 (Accessed: 7 May 2026).