Tropical soil biology and fertility : a handbook of methods
edited by J.M. Anderson and J.S.I. Ingram
CAB International, 1993
 Buku Referensi
Soil conservation & management in the humid tropics
edited by D.J. Greenland and R. Lal
John Wiley & Sons, 1979
 Buku Teks SO
Soil conservation & management in the humid tropics
edited by D.J. Greenland and R. Lal
John Wiley & Sons, 1979
 Buku Teks SO
Kezdi, Arpard
Handbook of soil mechanics
Elsevier, 1980
 Buku Referensi
Van Dersel, William Richard
The land renewed; the story of soil conservation
Oxford University Press, 1946
 Buku Teks SO