FARIS, Ali. M.; SHALLOOF, Faisal M. Primary indicators of foreign trade situation of Arab countries. Al-Mukhtar Journal of Sciences, Albayda, Libya, v. 5, n. 1, p. 66–85, 1998. DOI: 10.54172/mjsc.v5i1.564. Disponível em: https://mdp.omu.edu.ly/journals/index.php/mjsc/article/view/2423. Acesso em: 6 may. 2026.