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153781Article of investigationPublished in 1982Repositorio Agrosavia
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153782Conferencia (Ponencia)Published in 1992Repositorio Agrosavia
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153783Article of investigationPublished in 1970Repositorio Agrosavia
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153784Article of investigationPublished in 2008Repositorio Agrosavia
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153785Trabajo de grado de pregradoPublished in 2007Repositorio RIUD: repositorio U. Distrital
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153786Published in 2010Repositorio Repositorio UMNG
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153787Published in 2009Repositorio Repositorio UIS
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153788http://purl.org/coar/version/c_b1a7d7d4d402bccePublished in 2004Repositorio Repositorio UIS
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153789http://purl.org/coar/resource_type/c_6643Published in 2022Repositorio RiUPTC: Repositorio Institucional UPTC
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153790
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153791
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153792http://purl.org/coar/resource_type/c_6627Presence of contamination by As Cd, As, Pb, Se, and Hg in coals of the Cundiboyacense area, ColombiaPublished in 2016Repositorio RiUPTC: Repositorio Institucional UPTC
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153793
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153794Trabajo de grado de pregradoPublished in 2020Repositorio Expeditio: repositorio UTadeo
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153795Trabajo de grado de pregradoPublished in 2010Repositorio Expeditio: repositorio UTadeo
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153796Trabajo de grado de pregradoPublished in 2024Repositorio RIUD: repositorio U. Distrital
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153797Published in 2010Repositorio Repositorio Institucional USTA
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153798Published in 2008Repositorio Repositorio Institucional USTA
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153799articlePublished in 2014Repositorio Repositorio Universidad Javeriana“... profesionalesya la integró en su rutina. El análisis estadístico confirmósolo dos de nuestras hipótesis. Por...”
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153800Published in 2008Repositorio Universidad Santo Tomás
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