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Kuhusu
Reference
Swali na Muundo
Sampuli na Upimaji
Uchanganuzi
Usababishi na Ushahidi
Kuripoti na Maadili
Mwanzo
/
Mwandishi
M. J. Lindstrom, W. W. Nelson, T. E. Schumacher
Mbinu zinazohusishwa na mwandishi huyu.
Mbinu 1
Agronomia
1
Tillage Erosion Model
1992