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241Article of journalPublished in 1999Repositorio Universidad Nacional de Colombia
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242
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243Article of journalPublished in 2009Repositorio Universidad Nacional de Colombia
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244Article of journalPublished in 1985Repositorio Universidad Nacional de Colombia
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245
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246
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247Article of journalPublished in 2003Repositorio Universidad Nacional de Colombia
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248Article of journalPublished in 2016Repositorio Biblioteca Digital Universidad Externado de Colombia
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249
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250Trabajo de grado de pregradoPublished in 2017Repositorio Repositorio Institucional - RIBUC
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251
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253BookPublished in 2020Repositorio Expeditio: repositorio UTadeo
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254
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257
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258Article of journalPublished in 2021Repositorio Biblioteca Digital Universidad Externado de Colombia
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259
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260BookPublished in 1970Repositorio Expeditio: repositorio UTadeo
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