Elem, T., Ogwude, I., Ibe, C., Nnadi, K., & Ejem, E. (2020). Decoupling of economic activity and freight transport volume: An evidence for short sea shipping future in the ECOWAS sub-region. Journal Of Sustainable Development Of Transport And Logistics, 5(2), 124-134. doi:10.14254/jsdtl.2020.5-2.11