Contreras-González RY, Otero-Paternia R de J. Design of a general formula for solution of economic engineering exercises with uniform series and the present. Mundo Fesc [Internet]. 2022 Jan. 10 [cited 2024 May 18];12(23):190-208. Available from: https://www.fesc.edu.co/Revistas/OJS/index.php/mundofesc/article/view/1203