The Long‐Term Proficiency of Early, Middle, and Late Starters Learning English as a Foreign Language at School: A Narrative Review and Empirical Study
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2017 ◽
Vol 5
(3)
◽
pp. 22-45
2019 ◽
Vol 4
(1)
◽
pp. 117
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2021 ◽
pp. 179-185
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