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no DOI — not checkedThe effects of class size on student achievement in higher education: Applying an earnings function
no DOI — not checkedref13
no DOI — not checkedThe effect of class size on reading achievement
no DOI — not checkedref18
no DOI — not checkedEffects of class size on college student achievement
no DOI — not checkedref22
no DOI — not checkedThe Empirical case Against Large Class Size: Adverse Effects on the Teaching, Learning, and Retention of First-Year Students
no DOI — not checkedref24
no DOI — not checkedAttitude, Motivation, and Second Language Learning: A meta-analysis of studies conducted by Gardner and associates
no DOI — not checkedThe problem of difficulty in foreign language learning
no DOI — not checkedref34
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no DOI — not checkedref36
no DOI — not checkedEFL Teaching and Learning at a
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no DOI — not checkedref40
no DOI — not checkedClass size: Counting kids can count
no DOI — not checkedTeaching English to Arab students at the university level
no DOI — not checkedClass size and achievement in higher education: A summary of current research
no DOI — not checkedThe unbalanced program of the English department in the Arab world
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