E. Leonard and L. Macha, “The Effects of The Tanzanian Railway Network in the Performance of the Rail Freight Operations: A Case of Dar es Salaam to Isaka”, Int J Innov Educ Res, vol. 9, no. 4, pp. 91–109, Apr. 2021, doi: 10.31686/ijier.vol9.iss4.3024.