Rural extension and agricultural education /

類似資料

• A brief history of agricultural extension and education in Papua New Guinea /
  著者:: Dick, Gordon
  出版事項: (1976)
• A brief history of agricultural extension and education in Papua New Guinea /
  著者:: Dick, Gordon
  出版事項: (1976)
• The agricultural extension service in Papua New Guinea can we make it more effective?
  著者:: McKillop, Robert F.
  出版事項: (1974)
• An evaluation of the extension manual of the Department of Agriculture, Stock and Fisheries /
  著者:: Trevaskis, G. A.
  出版事項: (1969)
• Enhancement of agricultural extension services in Papua New Guinea.
  出版事項: (1998)