Training materials
Difficulty level: Beginner
and Contributors: Celia van Gelder or Dilmurat Yusuf or Dr. Bernard de Bono or Erik Hjerde or Gautam Vallabha or Manimozhiyan Arumugam or Marek Suchanek or Marek Vrbacky or Ms. Yo Yehudi or Nils Peder Willassen