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  1. 1981
  2. 1982
  3. 1983
  4. 1984
  5. 1985
    Part of book
    Published in 2022
    Repositorio Biblioteca Digital Universidad Externado de Colombia

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  6. 1986
  7. 1987
  8. 1988
  9. 1989
    http://purl.org/coar/resource_type/c_f744
    Published in 2022
    Repositorio Repositorio UCC

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  10. 1990
  11. 1991
    Trabajo de grado de pregrado
    Published in 2019
    Repositorio Repositorio UCC

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  12. 1992
  13. 1993
  14. 1994
  15. 1995
  16. 1996
  17. 1997
  18. 1998
    Trabajo de grado de pregrado
    Published in 2020
    Repositorio RED: Repositorio Educativo Digital UAO

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  19. 1999
  20. 2000