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เถาเครือมาส จ, Lenanan A, Panit A. The Development of English Teachers for Improving Speaking Skills of the Students by Using Professional Learning Community in Anuban Prachuap Khirikhan School. JPR [internet]. 2026 Aug. 29 [cited 2026 Sep. 10];9(2):210-2. available from: https://so03.tci-thaijo.org/index.php/JPR/article/view/302963