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- development communication5
- video[remove]5
- India3
- media effectiveness3
- rural development3
- audiovisual media2
- case studies2
- development2
- development issues2
- extension communication2
- information technology2
- radio2
- television2
- Canada1
- Satellite Instructional Television Experiment (SITE)1
- agricultural development1
- communication planning1
- computers1
- development programs1
- distribution1