We are not the owner of this product. It’s an intellectual property of the respective website. We believe that the intellectual property of a person or an organization should not be sold by others. That's why we don’t sell it. But we also believe that the availability of educational material should be determined according to the socio-economic status of different countries. That’s why we tried to implement a new method and that we call ‘BUY & SHARE TOGETHER’. According to this policy, we buy this content and we put it into our online storage system. If a person pays our Storage Maintenance Fees (SMF), we will provide access to the contents for a minimum of 5 years. But if one has the ability to pay the official website price, then we strongly recommend buying from them. You will find the details about them in our ‘Web Access’ section.