2015-05-212015-05-211994https://hdl.handle.net/20.500.14156/426468The First Development Plan (1961 - 1966) Table of Contents Cover Page Rear Page Revision of the Sixth Plan The Sixth Development Plan (1987 - 1991) The Fifth Development Plan (1982 - 1986) The Fourth Development Plan (1977 - 1981) The Third Development Plan (1972 - 1976) The Second Development Plan (1967 - 1971)26application/pdfthaThailand development planNational economic and social development planText