ศรีพยัคฆ์ ส., and วิเชียรสินธุ์ เ. “Factors Impacting of Travels by Bus for the Visually Impaired in the Bangkok Metropolitan Region”. Engineering and Technology Horizons, vol. 34, no. 2, June 2020, pp. 56-62, https://ph01.tci-thaijo.org/index.php/lej/article/view/241423.