%0 Journal Article %A Rafiee, Seyyed Jaffar, Alavinia, Parviz, Sarkhosh, Mehdi %T Iranian EFL High School Teachers' Perceptions of Virtual Learning System Opportunities, Challenges and Threats %J %V 10 %N 43 %P 179-192 %D 2022 %R 10.30495/jfl.2022.697424 %U https://sanad.iau.ir/fa/Article/990280