Subject Term
- Uganda1
- Upper Volta1
- Vietnam1
- Zambia1
- agricultural development1
- audience participation1
- audiovisual aids1
- communities1
- developing countries1
- development1
- development communication3
- education methods1
- educational films1
- educational media video1
- evaluation1
- extension communication2
- extension organizations1
- extension services1
- films1
- finance1