{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,1,28]],"date-time":"2025-01-28T05:41:07Z","timestamp":1738042867750,"version":"3.33.0"},"reference-count":41,"publisher":"Public Library of Science (PLoS)","issue":"1","license":[{"start":{"date-parts":[[2025,1,27]],"date-time":"2025-01-27T00:00:00Z","timestamp":1737936000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100012456","name":"National Social Science Fund of China","doi-asserted-by":"publisher","award":["23BYY171"],"award-info":[{"award-number":["23BYY171"]}],"id":[{"id":"10.13039\/501100012456","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Doctoral Research Startup Funding [Ningbo University of Technology]","award":["2023KQ045"],"award-info":[{"award-number":["2023KQ045"]}]},{"name":"\u201c2023 Word Language and Culture Research\u201d project [China Center for Language Planning and Policy Studies]","award":["WYZL2023SH0001"],"award-info":[{"award-number":["WYZL2023SH0001"]}]},{"name":"Fundamental Research Funds for the Central Universities [East China University of Science and Technology]","award":["JKS02232202"],"award-info":[{"award-number":["JKS02232202"]}]}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS ONE"],"abstract":"<jats:p>Language policy plays a pivotal role in sustaining language behaviors and transforming language ideologies into practices. While the analysis of language policies in international organizations has received increasing attention, the evolution of language policies in the Association of Southeast Asian Nations (ASEAN) has been understudied. Existing research on ASEAN\u2019s language policies has concentrated on its official language, often overlooking the language practices and ideologies embedded within these policies. This study seeks to investigate the evolution of ASEAN\u2019s language policy by examining its official documents and website. We employed the <jats:italic>Wayback Machine<\/jats:italic> to trace the development of the ASEAN official website and adopted a corpus-based approach, utilizing tools such as AntConc and Sketch Engine, to analyze the Chairman\u2019s Statements of the ASEAN Summit (CSAS). The study reveals three key insights: 1) The evolution of the ASEAN official website can be categorized into three distinct stages. 2) A consistent use of the collective pronoun \u201cwe\u201d in the statements highlights the emphasis on cooperation and progress across economic and political-security domains. 3) The ASEAN community has persistently upheld its values, fostering an ASEAN identity and a genuine ASEAN community throughout its development. This diachronic analysis clarifies the characteristics of ASEAN\u2019s language policy, deepening our understanding of the intricate relationship between language practices and ideology, and their implications for regional cooperation and integration.<\/jats:p>","DOI":"10.1371\/journal.pone.0315076","type":"journal-article","created":{"date-parts":[[2025,1,27]],"date-time":"2025-01-27T18:40:00Z","timestamp":1738003200000},"page":"e0315076","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":0,"title":["The evolution of ASEAN\u2019s language policies: A diachronic analysis of official documents and website"],"prefix":"10.1371","volume":"20","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3236-308X","authenticated-orcid":true,"given":"Chen","family":"Zhang","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ronghui","family":"Zhao","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2883-3202","authenticated-orcid":true,"given":"Yan","family":"Huang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"340","published-online":{"date-parts":[[2025,1,27]]},"reference":[{"issue":"5","key":"pone.0315076.ref001","doi-asserted-by":"crossref","first-page":"659","DOI":"10.1080\/13569775.2023.2216031","article-title":"How regional organisation survives: ASEAN, hedging and international society","volume":"29","author":"IGW Wicaksana","year":"2023","journal-title":"Contemporary Politics"},{"key":"pone.0315076.ref002","doi-asserted-by":"crossref","first-page":"725","DOI":"10.1002\/9781118791882.ch32","volume-title":"The Handbook of Asian Englishes","author":"A. 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