Chengula, Duwa Hamisi, and Keneth Kombe. “Assessment of the Effectiveness of Dar Es Salaam Bus Rapid Transit (DBRT) System in Tanzania”. International Journal of Sciences: Basic and Applied Research (IJSBAR), vol. 36, no. 8, Dec. 2017, pp. 10-30, https://www.gssrr.org/JournalOfBasicAndApplied/article/view/8439.