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1. Presentaci�on de informes by Lerma Gonz�alez, H�ector Daniel. Publication: Bogot�a : Ecoe Ediciones, 2011 . 1 online resource. Date:2011 Availability: No items available: Actions: Add to cart
2. Metodolog�ia de la investigaci�on by Lerma Gonz�alez, H�ector Daniel. Publication: Bogot�a, D.C. : Ecoe Ediciones, 2009 . 1 online resource (193 p�aginas) : Date:2009 Availability: No items available: Actions: Add to cart