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- booklets[remove]3
- development2
- development communication2
- rural development2
- teaching methods2
- Ivory Coast1
- Mexico (Latin America; Central America)1
- appropriate technology1
- articles1
- audio tape recordings1
- audiovisual materials1
- audiovisual media1
- communication methods1
- credibility (sources)1
- educational media films1
- educational methods1
- farmers1
- fish1
- flannelgraph1
- home furnishings1