These notes have been obtained from friends,collegues, free internet search and Subject’s teacher.We don’t hold any kind of copyright to these materials.If you have any problems or concerns about copyright materials, feel free to contact with us.We will be more than happy to resolve the issue by negiotiating or ultimately removing the content. If the doc. we have belongs to you or someone you know, contact us.We will give proper credits to them for their hard work.
        The documents provided here are free to use and share for educational purpose only.