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1811
Perceived difficulties of elementary science teachers in participating in science fairs
Izdano 1980Disertacija -
1812
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1813
An evaluation of some aspects of the elementary science program in the district of Urdaneta I
Izdano 1980Disertacija -
1814
The predictive validity of the high school entrance examination at Aquinas University
Izdano 1980Disertacija -
1815
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1816
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1817
Enrichment activities for high school science to develop skills in science processes
Izdano 1980Disertacija -
1818
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1819
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1820
Inquiry-oriented openers of lessons for the community a textbook for social studies
Izdano 1980Disertacija