HAZRAT UMAR. The Use of Mother Tongue in Teaching and Learning of Second Language (English) at the Higher Secondary Level in Islamabad Hazrat Umar Abstract The role of the mother tongue as a medium of instruction is an important issue in second language teaching a. JCTE, [S. l.], v. 1, 2023. DOI: 10.58444/jcte.v1i.217. Disponível em: https://ojs.aiou.edu.pk/index.php/jcte/article/view/217. Acesso em: 15 may. 2024.