The Impact of Port Productivity Efficiency on Trade: Evidence from a Panel of African Countries. Al-Mukhtar Journal of Economic Sciences, [S. l.], v. 9, n. 2, p. 345–357, 2022. DOI: 10.54172/xjzesf13. Disponível em: https://mdp.omu.edu.ly/journals/index.php/mjes/article/view/2979. Acesso em: 30 jul. 2026.