Triana, M. I. R. (2012). Estimation and analysis of expenditure and income of the floating population of undergraduate university student in the city of Tunja, Colombia. Universidad Pedagógica y Tecnológica de Colombia.
Chicago-viite (17. p.)Triana, María Isabel Rojas. Estimation and Analysis of Expenditure and Income of the Floating Population of Undergraduate University Student in the City of Tunja, Colombia. Universidad Pedagógica y Tecnológica de Colombia, 2012.
MLA-viite (9. p.)Triana, María Isabel Rojas. Estimation and Analysis of Expenditure and Income of the Floating Population of Undergraduate University Student in the City of Tunja, Colombia. Universidad Pedagógica y Tecnológica de Colombia, 2012.
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