Fakharuddin Ibrahim and  Jamaludin Md. Ali and  Ahmad Ramli ,  Generating Arabic Fonts Using Rational Cubic Ball Functions.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2016, vol. 110(2). 282 - 285
    [viewed 28 May 2022]. Available from: https://publications.waset.org/pdf/10003569.