In this article, we will give you some resources that can help you improve yourself. Thanks to these websites, you can find resources that you can develop yourself for free.
It is official Turkish dictionary and it is totally free. You can find any word and its meaning in this website: https://sozluk.gov.tr/
You can find general rules about writing and grammar. It is an official resource: http://tdk.gov.tr/category/icerik/yazim-kurallari/
You can find official Turkish school books in this website: http://ogmmateryal.eba.gov.tr/panel/EKitap.aspx
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