O’BRIEN, W. . LIBYA’S REVENUE FROM PETROLEUM. دراسات في الاقتصاد والتجارة , [S. l.], v. 4, n. 1, 1968. DOI: 10.37376/deb.v4i1.1486. Disponível em: https://journals.uob.edu.ly/DEB/article/view/1486. Acesso em: 27 2025.