Gaya APA
MOELLER, A. (2004).
Estimation of environmental and economic costs of soil erosion in Indonesia- Case study"Kabupaten Sleman" 15 jul - 15 Dec 2003 .
:
DJGSM.
Gaya MLA
MOELLER, Andreas.
"Estimation of environmental and economic costs of soil erosion in Indonesia- Case study"Kabupaten Sleman" 15 jul - 15 Dec 2003".
:
DJGSM,
2004.
Laporan.