User talk:87.143.114.202

Hi I am Bobrk222 from Syndey University and I have found several issues in this page and improve that as well 1. Some places through the page need to cite sources to support the idea, because facts are mentioned and no supported by source. So I have searched the data in journal articles which can support the points in the page and added them. 2. In the layout section the main types of language are not illustrated and are disputed. So I have added two main kinds language laboratory mentioned in major journals and their description.