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Bridging the gap : computer model enhanced learning about natural resource management in Burkina Faso / Annemarie van Paassen.
- Wageningen university and research centre. Department of environmental sciences. Erosion and soil and water conservation group,
- 2004.
- Wageningen :
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Using eucalyptus for soil & water conservation on the highland vertisols of Ethiopia / Selamyihun Kidanu.
- Wageningen university and research centre. Department of environmental sciences. Erosion and soil and water conservation group,
- 2004.
- Wageningen :