Dike, D. N., Ibe, C. C., Ejem, E. A., Erumaka, O. and Chukwu, O. E. (2018) “Estimation of inter-city travel demand for public road transport in Nigeria”, Journal of Sustainable Development of Transport and Logistics, 3(3), pp. 88–98. doi: 10.14254/jsdtl.2018.3-3.7.