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Effectiveness of Duolingo in Improving Vocabulary Ability at the Sixth Grade of. Madrasah Ibtidaiyah Darul Ilmi Banjarbaru School Year 2017/2018.
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Duolingo is a language-learning application wherein students can learn English which made Duolingo's effectiveness questionable.
The Effectiveness of Duolingo in Improving Students'. Speaking Skill at Madrasah Aliyah Bilingual Batu School Year. 2019/2020. Thesis English Education
The Effectiveness Of Using. Duolingo Interactive Media On The Mastery Of German Vocabulary. J-EDu: Journal. Erfolgreicher Deutschunterricht 2(1)
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