Suwaree Yordchim and  Toby J. Gibbs,  Error Analysis of English Inflection among Thai University Students.   journal   = {International Journal of Cognitive and Language Sciences}, [online]. World Academy of Science, Engineering and Technology.
    June 2014, vol. 91(7). 2185 - 2188
    [viewed 04 May 2024]. Available from: https://publications.waset.org/pdf/9998795.