Gittinger, J. Price, author
The literature of agricultural planning notes on its usefulness
Center for Development Planning, National Planning Association, 1966
 Buku Teks
Gittinger, J. Price, author
Planning for agricultural development the Iranian experience
National Planning Association , 1965
 Buku Teks
Heady, Earl O., author
Agricultural policy under economic development
Iowa State University Press, 1969
 Buku Teks
Agricultural development in modern Japan
edited by Takekazu Ogura
Fuji Publishing, 1967
 Buku Teks
Slight progress wrong direction of agricultural development
 Artikel Jurnal
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