Mejía Aguilar G, Hernández C. TC. Follow-up of productivity on work: techniques of measurement of performance of labor. Rev. UIS ing. [Internet]. 2007 Oct. 19 [cited 2024 Aug. 24];6(2):45-59. Available from: https://revistas.uis.edu.co/index.php/revistauisingenierias/article/view/405