Azizeh Chalak and  Niloufar Nasri,  The Interplay of Locus of Control, Academic Achievement, and Biological Variables among Iranian Online EFL Learners.   journal   = {International Journal of Cognitive and Language Sciences}, [online]. World Academy of Science, Engineering and Technology.
    June 2015, vol. 104(8). 2651 - 2655
    [viewed 20 April 2024]. Available from: https://publications.waset.org/pdf/10001674.