Descripción: “... (sustainable environmental management, sustainable tropical agricultural production and Sustainable Systems...”

Descripción: “... production of which  he is the  author.”The World  Medical Association’s  Declaration of Helsinki may...”

Descripción: “...Titulo en ingles: The need for increasing scientific journal production in the Orinoquia region...”

Descripción: “... by an institution or a country, research groups or individuals with the greatest scientific productivity. ...”