Sulman, Elizabeth
Introduction to soil
Prentice-Hall, 1999
 Buku Teks
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
Craig, R.F. (Robert F.)
Soil mechanics
Van Nostrand Rheinhold, 1974
 Buku Teks
Baver, L.D. (Leonard David), 1901-
Soil physics
John Wiley & Sons, 1972
 Buku Teks