Muslim D, Sarfraz M, Azad M- ud-D, Zahra A, Touseef SA. Problems and Difficulties Faced by Conventional University Teachers as a Result of Shifting from Face-to-Face to Virtual Teaching Mode during the Covid-19 Pandemic: An Empirical Evidence from Lahore. HNJSS [Internet]. 2022 Sep. 20 [cited 2025 Apr. 25];3(3):43-56. Available from: https://hnpublisher.com/ojs/index.php/HNJSS/article/view/227