FARIS, Ali M.; HASSAN, Abdul Razak A. Effect Of External Labor Force in Agricultural Development of Jabel El–Akhdar Region, North East Libya . Al-Mukhtar Journal of Sciences, Albayda, Libya, v. 6, n. 1, p. 55–67, 1999. Disponível em: https://mdp.omu.edu.ly/journals/index.php/mjsc/article/view/2841. Acesso em: 6 may. 2026.