فهرست مقالات Seyyed Jaffar Rafiee مقاله 1 - Iranian EFL High School Teachers' Perceptions of Virtual Learning System Opportunities, Challenges and Threats 10.30495/jfl.2022.697424 Seyyed Jaffar Rafiee Parviz Alavinia Mehdi Sarkhosh International Journal of Foreign Language Teaching and Research , شماره 5 , سال 10 , زمستان 2022