- Free books on agriculture
- Measures to stop global warming
- Viability of recycling semiconductors in Intel Processors
- Ecotourism
- Tibial Fracture Fixation
- Solar cooker
- Wheelbarrow construction manual
- Wastewater treatment effluent
- Rice husker construction manual
- Solar hot water system
- VOCs in fiberglass insulation
- Athena Software
- Drying of foods (Practical Action Brief)
- Engr305 Appropriate Technology Projects
- Natural Ventilation
- Washing and drying clothes
- Polymer environmental-friendly resin
- Natural paints
- Use of DDT in fighting malaria
- Waste reduction