Classroom Discourse as a Socio-Linguistic Ecosystem: A Critical Discourse Analysis of Indigenous Language Marginalisation and Linguistic Sustainability in Sindhi Education. IJEMD-SS [Internet]. 2026 Sep. 10 [cited 2026 Oct. 23];5(4):678-89. Available from: https://ojs.ijemd.com/index.php/SocialScience/article/view/820