Diaz Chacón, Y., Martínez Avella, H.A. and Sanabria Pérez, I.E. (2025) “Quality assurance for SMEs in the metalworking sector in the Central Province (Tunja), Sugamuxi Province (Sogamoso), and Tundama Province (Duitama)”, in Opportunities and Challenges for Competitiveness in the Metalworking, Auto Parts, and Auto Body Repair Sectors in Boyacá. Colombia,CO: Sello Editorial UNAD (Administrative, Accounting, Economic and Business), pp. 137–154. doi:10.22490/UNAD.9786287786776.8.