Kittisak Kerdprasop and  Nittaya Kerdprasop,  On Pattern-Based Programming towards the Discovery of Frequent Patterns.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2007, vol. 11(11). 3433 - 3438
    [viewed 19 October 2019]. Available from: https://publications.waset.org/pdf/11662.