tontonan
how to learn a language on your own as a busy student (self study guide)
Fluent in German with Duolingo
7 Step Study Plan - Duolingo English Test
BE MORE PRODUCTIVE LEARNING LANGUAGES ON DUOLINGO: Tips and Tricks
Stop PRETENDING that Duolingo works.
How I increased my Production from 95 to 140 | Duolingo English Test
Time It Takes To Learn Languages | Comparison
Is Duolingo Useful?