Title:Representación literaria del cambio perturbador sonoro en la novela Mene de Ramón Díaz Sánchez / Literary representation of the disturbing sound change in the novel Mene by Ramón Díaz Sánchez
Title:The corporate social responsibility projects of the oil companies in Angola: anecdotal fact or significant new trend in public health development intervention?
Title:Incidencia de los precios del petróleo en el crecimiento económico y la inversión extranjera directa en Colombia durante el periodo 1990-2010 / Impact of oil prices in economic growth and foreign investment in Colombia for the period 1990-2010