Mohammad J. Rezai and  Fereshteh Davarpanah,  The Study of Formal and Semantic Errors of Lexis by Persian EFL Learners.   journal   = {International Journal of Cognitive and Language Sciences}, [online]. World Academy of Science, Engineering and Technology.
    January 2019, vol. 145(1). 41 - 47
    [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/10009945.