KAEWTHAMMANUKUL, P.; ANCHUNDA, H. Y. A Development of English Listening and Speaking Skills Through Natural Approach for Grade 9 Students at Watsidok School, Phrae. Journal of Graduate MCU KhonKaen Campus, [S. l.], v. 10, n. 2, p. 140–150, 2023. Disponível em: https://so02.tci-thaijo.org/index.php/jg-mcukk/article/view/261259. Acesso em: 1 oct. 2026.