Home › Authors › Philippines. Regional Development Council. Region XI. 👤 Philippines. Regional Development Council. Region XI. 3 books Books by Philippines. Regional Development Council. Region XI. Southern Mindanao region devel Southern Mindanao region development plan, 1993-1998 1993 Regional development investmen Regional development investment program, 1984-1987 1983 Southern Mindanao (Region XI) Southern Mindanao (Region XI) 1977