H. A. SULEIMAN; M.A; PH.D. A COMPARATIVE PRODUCTIVITY SURVEY OF SOME WESTERN EUROPEAN COUNTRIES WITH SPECIAL EMPHASIS ON BRITAIN. دراسات في الاقتصاد والتجارة , [S. l.], v. 5, n. 1, 1969. DOI: 10.37376/deb.v5i1.1516. Disponível em: https://journals.uob.edu.ly/DEB/article/view/1516. Acesso em: 27 2025.