WASET
    Etim and  Victoria Enefiok and  Dada and  Oluseyi Akintunde and  Bassey Okon,  A Prevalence of Phonological Disorder in Children with Specific Language Impairment.   journal   = {International Journal of Cognitive and Language Sciences}, [online]. World Academy of Science, Engineering and Technology.
    May 2018, vol. 138(6). 267 - 270
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/10009143.