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Legal and copyright information

All our tutorials are published under the Creative Commons Attribution-NonCommercial license:

  • You can re-use these tutorials.
  • You can modify these tutorials
  • You must link back to our original tutorial
  • You cannot use these tutorials comercially

Full license details

Wherever, images or videos have been used from other open source websites or journal articles, the source has been acknowledged. The flash videos from the Indira Gandhi national Open University (IGNOU) have been permitted by the university on this website with the understanding that they will not be used commercially.

Please contact us for any query on using images and videos from this website.

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