Johnson, James E.; Delgado, Orlando J. (October 2003). "Farmer perspectives on agroforestry opportunities and constraints in Cape Verde". Small-scale Forest Economics, Management and Policy. 2 (3): 343–355. doi:10.1007/s11842-003-0024-4. S2CID13540449.
Johnson, James E.; Delgado, Orlando J. (October 2003). "Farmer perspectives on agroforestry opportunities and constraints in Cape Verde". Small-scale Forest Economics, Management and Policy. 2 (3): 343–355. doi:10.1007/s11842-003-0024-4. S2CID13540449.