Sulman, Elizabeth, author
Introduction to soil
Prentice-Hall, 1999
 Buku Teks
Alexander, Martin, author
Introduction to soil microbiology
John Wiley & Sons, 1977
 Buku Teks
Interactive soil mechanics and foundations
John Wiley & Sons, 2007
 Multimedia
Characteristics of composted bio-toilet residue and its potential use as a soil conditioner
 Artikel Jurnal
The effect of water regime and soil management on methane emission reduction from rice field
 Artikel Jurnal
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