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2131
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2132
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2133
Science interests of grade ll children in Tuguegarao district no. 2 [microform].
Izdano 1976Visual Material -
2134
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2135
Elementary school teachers' utilization of local cultural materials in social studies [microform]
Izdano 1976Visual Material -
2136
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2137
Difficulties in science teaching in the elementary schools of Oroquieta, Misamis Occidental
Izdano 1976Visual Material -
2138
Discovery-centered versus teacher-centered patterns of instruction changes in critical thinking
Izdano 1976Visual Material -
2139
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2140