Maria Istvanova,  Comparative Study of Affricate Initial Consonants in Chinese and Slovak.   journal   = {International Journal of Cognitive and Language Sciences}, [online]. World Academy of Science, Engineering and Technology.
    November 2021, vol. 177(9). 912 - 915
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/10012295.