Khompratya, Theerachai, and Pongrid Klungboonkrong. 2017. “Development of the decision support tool for analyzing black spot locations in road network using geographic information system: Khon Kaen University case study (Thai)”. Asia-Pacific Journal of Science and Technology 14 (2):181-91. https://so01.tci-thaijo.org/index.php/APST/article/view/83364.