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Factors affecting the effectiveness of the picture exchange communication system for children with autism
Vydáno 2010Diplomová práce -
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Perception of pictorial and visual symbols in some Asian countries the Philippine rural study [microform]
Vydáno 1977Visual Material -
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Developing concept-situation skills of the educable mentally retarded through picture drama primary level
Vydáno 1974Diplomová práce -
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