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Advanced searchUniversidad Centroccidental Lisandro Alvarado
Yacambu University
Antonio José de Sucre National Experimental Polytechnic University
Venezuela, BarquisimetoJesús Obrero Barquimeseto University Institute
Venezuela, BarquisimetoLibertador Experimental Pedagogical University – Luis Beltrán Prieto Figueroa Pedagogical Institute of Barquisimeto (UPEL-IPB)