Heady, Earl O., author
Economics of agricultural production and resource use
Prentice-Hall, 1952
 Buku Teks
Barlowe, Raleigh, author
Land resource economics the political economy of rural and urban land resource use
Prentice-Hall, 1961
 Buku Teks
Agricultural production and land-use pattern in Kgatleng DIstrict, Botswana
 Artikel Jurnal
Ross, Robert C., author
An introduction to agricultural economics
McGraw-Hill, 1951
 Buku Teks
the Australian Journal of Agricultural Economics
the Australian Agricultural Economic Society, 1989
 Majalah, Jurnal, Buletin
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