Name Roya Letafati Affiliation عضو هیئت علمی سایر دانشگاههای داخل کشور Degree _ Website Email — JournalPaper Presentation Speech WorkShop Book Innovation GrantAttraction Thesis Festival FinishedProject Sales Art Membership StandardCreation Publication TheorizingChair TitleJournal 1 Efficiency of Vaccines for Covid-19 and Stability Analysis with Fractional Derivative Computational Methods for Differential Equations 2 La perspective éthique de la didactique des langues-cultures Episteme-A Journal of Individual and Social Epistemology