Tanah: Perbedaan revisi

23 bita ditambahkan ,  3 bulan yang lalu
k
k (menambah pengawasan otoritas)
* [http://www.waterlog.info/pdf/balances.pdf] Salt and water balance of the soil
* [http://science-in-farming.library4farming.org/] Many agricultural resources including a copy of the reference 'Soil: the 1957 yearbook of agriculture'
 
{{Authority control}}
 
[[Kategori:Tanah| ]]