Training materials
Difficulty level: Not specified
and Licence: Creative Commons Attribution Non Commercial Sha...
and Authors: Allegra Via or Dave Clements or Hadley Wickham or Janick Mathys or Sergio Martínez Cuesta
Difficulty level: Not specified
and Licence: Creative Commons Attribution Non Commercial Sha...
and Authors: Allegra Via or Dave Clements or Hadley Wickham or Janick Mathys or Sergio Martínez Cuesta