García Cabana, A.C. and Alba Maldonado, J.M. (2011) “Diagnosis of the changes in strategic ecosystems in the Eco region of Sogamoso as a result of the rural and urban development policies in the period 2000-2010”., Revista de Investigación Agraria y Ambiental, 2(2), pp. 97–103. doi:10.22490/21456453.919.