Tola, A. M., & Gebissa, A. (2019). Identifying Black Spot Accident Zones Using a Geographical Information System on Kombolcha-Dessie Road in Ethiopia. International Journal of Sciences: Basic and Applied Research (IJSBAR), 48(1), 66–79. Retrieved from https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/10199