Pareja Vasseur, Julián Alberto, and Maribel Serna Rodríguez. “Projection of TIR (Spanish Abbreviation Standing for Internal Rate of Return) of the Investor through Linear Equations”. Revista Universidad EAFIT, vol. 44, no. 152, Mar. 2011, pp. 80-89, https://publicaciones.eafit.edu.co/index.php/revista-universidad-eafit/article/view/86.