Walter Salzer

• Eco-economic assessment of agricultural extension recommendations for shifting cultivators in Northern Thailand
• Eighth semi-annual progress report, July 1985-December 1985
• Nam Lang planning, 1985-1989
• Sixth semi-annual progress report, April 1984-September 1984
• Tenth semi-annual progress report, July 1986-December 1986
• The TG-HDP approach towards sustainable agriculture and soil and water conservation in the hills of northern Thailand