1. Faculty of Pedagogy and Fine Arts in Kalisz, Adam Mickiewicz University, Poznań, Poland
2. Faculty of Humanities and Social Sciences, University of Applied Sciences, Konin, Poland
3. Faculty of Language and Literature, Department of English and Linguistics, University of Kurdistan, Sanandaj, Iran
4. Institute of Modern Languages, University of Zielona Gora, Zielona Góra, Poland