Issues of quality and relevance in distance-teaching materials (ara)

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Bibliographic Details
Main Authors: UNESCO International Bureau of Education, Zahlan, Anthony B.
Format: article biblioteca
Language:ara
Subjects:Distance education, Teaching materials, Educational relevance, Educational quality, Cost effectiveness, Textbook production,
Online Access:https://unesdoc.unesco.org/ark:/48223/pf0000079433_ara
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