Educational communication for development basic concepts, theories and know-how
| Autor principal: | |
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| Formato: | Livro |
| Idioma: | English |
| Publicado em: |
Los Banos, Laguna
College of Agriculture, University of the Philippines, Los Banos
2003, c1991.
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| Edição: | Rev. ed. |
| Assuntos: |