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Assagung ZMH. The Use of Pecha Kucha for Speaking English by Students Participating in Pecha Kucha Competitions. RETAIN : J. Res. Engl. Lang. Teach. [Internet]. 2022 Sep. 14 [cited 2025 Jul. 6];10(02):16-23. Available from: https://ejournal.unesa.ac.id/index.php/retain/article/view/46276