Roselyn A. Maaño,  Development of a Computer Vision System for the Blind and Visually Impaired Person.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    October 2013, vol. 83(11). 1452 - 1456
    [viewed 11 May 2024]. Available from: https://publications.waset.org/pdf/17415.