BERRIOS, Rubén; SAGASTI, Francisco R. Numerical Control Tool-Machines In The Peruvian Metalworking Industry: Current Situation and Future Perspectives. Apuntes. Social Sciences Journal, [S. l.], n. 16, p. 71–87, 1985. DOI: 10.21678/apuntes.16.211. Disponível em: https://revistas.up.edu.pe/apuntes/article/view/211. Acesso em: 22 sep. 2026.