Okewu E. Jonathan,  Clay Palm Press: A Technique of Hand Building in Ceramics for Developing Conceptual Forms.   journal   = {International Journal of Humanities and Social Sciences}, [online]. World Academy of Science, Engineering and Technology.
    June 2018, vol. 138(6). 823 - 827
    [viewed 23 April 2024]. Available from: https://publications.waset.org/pdf/10009213.