Martínez Bernal, Martha Stella, Universidad Pedagógica y tecnológica de Colombia, Duitama, Colombia
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I+D Revista de Investigaciones Vol. 7 No. 1 (2016): January-June 2016 - Articulos-V7
Business training towards building strategies or replacement formalization of informal mining in the department of Boyaca, city Sogamoso case study
Abstract PDF (Español (España))