MUHAMMAD JAMIL; FATIMA ANWAR; HUMAYUN SOHAIL. UNLOCKING THE SUSTAINABILITY: EVALUATING THE SUSTAINABILITY EDUCATION IN ENGLISH TEXTBOOK GRADE IX. JOURNAL OF SOCIAL SCIENCES DEVELOPMENT, [S. l.], v. 3, n. 2, p. 1–13, 2024. DOI: 10.53664/JSSD/03-02-2024-01-01-13. Disponível em: https://jssd.org.pk/index.php/jssd/article/view/73. Acesso em: 12 oct. 2024.