Viteri Sánchez C, Viteri Moya J, Matute Déleg E. System of performance indicators for SMEs, metalworking sector. Enfoque UTE [Internet]. 2014 Mar. 27 [cited 2024 Nov. 7];5(1):pp. 49 - 61. Available from: http://ingenieria.ute.edu.ec/index.php/revista/article/view/35