Lara Gomez, W. J., Castro Silva, H. F., & Cordero Díaz, J. D. . (2026). Support to tactical management for continuous improvement by applying the DMAIC cycle in the purchase order process of Colombia and Ecuador in the ECOLAB company). Mundo FESC Journal, 16(36), 27-50. https://doi.org/10.61799/2216-0388.2121