Łątka-Likh, E. “The Error in the Interlanguage of Polish As a Foreign Language Learners and the Intercultural Communications Problems. A New Approach”. Acta Universitatis Lodziensis. Kształcenie Polonistyczne Cudzoziemców, vol. 22, Jan. 2015, pp. 143-54, doi:10.18778/0860-6587.22.10.