Muslim, D. .; Sarfraz, M. .; Azad, M.- ud-D. .; Zahra, A. .; Touseef, S. A. . 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 2022, 3 (3), 43-56. https://doi.org/10.71016/hnjss/prd4dq87.