[1]
D. Tran, 《Extracurricular Activities in English Language Teaching as a Pathway to Sustainable Development Goal 4 in Higher Education》, J. Knowl. Learn. Sci. Technol., 卷 5, 期 1, 页 32–45, 3月 2026, doi: 10.60087/jklst.vol5.n1.004.