-
1
-
2
-
3
Farmers' estimations as a source of production data methodological guidelines for cereals in Africa
Argitaratua 1991Liburua -
4
-
5
A Barangay data base in agriculture three barangays in Guimaras sub-province.
Argitaratua 1984Liburua -
6
-
7
-
8
-
9
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