Lua APA (7ú heag.)

Indonesia. Direktorat Penyuluhan Pertanian. (1971). Improvement and strengthening of agricultural extension activities. Directorate of Agricultural Extension.

Lua i Stíl Chicago (17ú heag.)

Indonesia. Direktorat Penyuluhan Pertanian. Improvement and Strengthening of Agricultural Extension Activities. [Djakarta]: Directorate of Agricultural Extension, 1971.

Lua MLA (8ú heag.)

Indonesia. Direktorat Penyuluhan Pertanian. Improvement and Strengthening of Agricultural Extension Activities. Directorate of Agricultural Extension, 1971.

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