WASET
    Roelien Goede,  Making Data Structures and Algorithms more Understandable by Programming Sudoku the Human Way.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    April 2013, vol. 76(4). 464 - 467
    [viewed 18 April 2024]. Available from: https://publications.waset.org/pdf/2326.