Portillo Melo, D. M., Enriquez Guerra, F. B., & Riascos Hermoza, J. C. (2019). Economic Factors that Affect the Technical Efficiency Index of the Public Hospitals of the State of Nariño -Colombia 2008-2014. Universidad Pedagógica y Tecnológica de Colombia.
Chicago-viite (17. p.)Portillo Melo, Danyeli Maricel, Francely Brigit Enriquez Guerra, ja Julio César Riascos Hermoza. Economic Factors That Affect the Technical Efficiency Index of the Public Hospitals of the State of Nariño -Colombia 2008-2014. Universidad Pedagógica y Tecnológica de Colombia, 2019.
MLA-viite (9. p.)Portillo Melo, Danyeli Maricel, et al. Economic Factors That Affect the Technical Efficiency Index of the Public Hospitals of the State of Nariño -Colombia 2008-2014. Universidad Pedagógica y Tecnológica de Colombia, 2019.