TANZEELA YAQOOB ,IMRAN HAMEED KHALIQ ,FARAZ AHMED FAROOQI. Assessment of Knowledge, Attitude and Practices of Covid-19 among Teachers and Students of Karachi, Lahore and Islamabad. Pakistan Journal of Educational Research , [S. l.], v. 4, n. 1, 2021. DOI: 10.52337/pjer.v4i1.174. Disponível em: https://pjer.org/index.php/pjer/article/view/174. Acesso em: 30 oct. 2025.